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HPV Strains - The Ultimate Guide 

HPV Strains - The Ultimate Guide 

Kadia Bielecki
The majority of cervical cancer cases are caused by two particular types of human papillomavirus (HPV): HPV 16 and HPV 18.¹˒² Viruses are all around us and can be contracted in many different ways. They range from the common cold to hepatitis viruses to HPV. HPV is transmitted through skin-to-skin contact, most commonly during sexual activity. While many HPV infections never cause symptoms, certain strains can lead to genital warts, cervical dysplasia (precancerous changes of the cervix), or, in some cases, cancer.¹˒³ It can be overwhelming to know which HPV strains deserve the most attention, especially since there are more than 200 identified HPV types, with approximately 40 infecting the anogenital tract.³˒⁴ https://youtu.be/75Fajd5KrmA?si=lFhHD7mF0hIjv5tC Fortunately, not all HPV strains carry the same level of risk. Most HPV infections involve low-risk types that either cause no symptoms or may result in benign conditions such as common or genital warts. In fact, the majority of HPV infections are cleared naturally by the immune system within one to two years.¹˒³˒⁵ However, some high-risk HPV strains can persist over time. Persistent infection with these high-risk types is the primary cause of cervical cancer and is also associated with several other cancers, including anal, vaginal, vulvar, penile, and oropharyngeal cancers.¹˒²˒³ Understanding which HPV strains are considered low risk versus high risk can help you make informed decisions about screening, vaccination, and lifestyle habits that support your overall health. Understanding the HPV Picture Before we get into the different HPV strains, it's important to remember one thing: HPV is extremely common. The World Health Organization estimates that most sexually active people will become infected with HPV at some point in their lives, often without ever knowing it because the infection usually causes no symptoms.¹ Fortunately, most HPV infections are temporary. In approximately 90% of people, the immune system clears the virus naturally within two years, without causing long-term health problems.⁵ For a smaller number of individuals, however, the infection persists. Persistent infection with a high-risk HPV type is the most important risk factor for developing cervical cancer and several other HPV-related cancers.¹˒² The goal of Papillex® is to help support normal immune function and address nutritional gaps that may influence overall immune health. It was formulated by naturopathic doctors using ingredients selected based on the available scientific evidence for immune support. (Note: Papillex is not intended to diagnose, treat, cure, or prevent HPV infection or HPV-related disease.) How Is It Passed On? HPV is spread through direct skin-to-skin contact, most commonly during vaginal, anal, or oral sex.¹˒⁶ Because HPV often causes no symptoms, people can unknowingly transmit the virus to their partners. Even individuals who have no visible signs of infection may still spread HPV.⁶ Although condoms and dental dams reduce the risk of transmission, they do not provide complete protection because HPV can infect areas of skin that are not covered by barrier protection.⁶ The good news is that, for most people, the immune system successfully clears the infection before it causes any health problems.⁵ What About the HPV Vaccine? Because HPV types 16 and 18 are responsible for approximately 70% of cervical cancers worldwide, vaccines have been developed to help prevent infection with these high-risk strains.²˒⁷ Today, the 9-valent HPV vaccine (Gardasil®9) is the vaccine most commonly used in many countries. It protects against HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58, covering the HPV types responsible for the vast majority of cervical cancers as well as approximately 90% of genital warts.⁷˒⁸ HPV vaccines are preventive, not therapeutic. They do not treat existing HPV infections or HPV-related disease, but extensive clinical trials and ongoing safety monitoring have shown them to be highly effective at preventing infection with the HPV types they target.⁷˒⁹ The World Health Organization recommends routine HPV vaccination for girls aged 9 to 14 years, ideally before the onset of sexual activity, and many countries also recommend vaccination for boys to reduce HPV transmission and protect against HPV-related cancers in both sexes.⁷ The Strains Many HPV types exist, but only a small number are responsible for the majority of HPV-related disease. Of the approximately 40 HPV types that infect the genital tract, some are considered low risk, meaning they may cause warts but are not associated with cancer, while others are classified as high risk because persistent infection can lead to precancerous cell changes and cancer.¹⁻³ Here's a breakdown of the most well-known HPV types. HPV Types 2 and 4 The HPV strains that many people encounter during childhood are HPV 2 and HPV 4, which are responsible for many common warts found on the hands and feet. These strains are not sexually transmitted and are not associated with cervical cancer.⁴ Common warts caused by these HPV types can often be treated with over-the-counter products or by a healthcare provider. HPV Types 6 and 11 HPV types 6 and 11 are considered low-risk HPV strains because they are rarely associated with cancer. However, they are responsible for approximately 90% of genital wart cases worldwide.⁵ Genital warts may appear weeks to months after exposure, although many people infected with HPV 6 or 11 never develop visible warts. Even without symptoms, an infected person can still transmit the virus to a sexual partner.¹˒⁶ HPV Types 16 and 18 HPV types 16 and 18 are classified as high-risk HPV strains because persistent infection with these viruses can lead to the development of cancer. Together, they are responsible for approximately 70% of cervical cancers worldwide and are also associated with anal, vaginal, vulvar, penile, and oropharyngeal cancers.²˒⁷ Testing positive for HPV 16 or 18 does not mean you have cancer or that you will develop cancer. Most HPV infections, including many caused by high-risk strains, are eventually cleared by the immune system. The greatest concern arises when a high-risk HPV infection persists for many years, allowing abnormal cervical cells to develop over time.¹˒³ How Will I Know If I Have HPV? Because HPV usually causes no symptoms, routine cervical screening remains the best way to detect abnormal cervical cell changes before they become cancerous.⁸ Most women with HPV do not develop cervical cancer, particularly when they participate in regular cervical screening. Screening allows healthcare providers to identify abnormal cells early, when they can be monitored or treated before cancer develops.⁸˒⁹ Screening recommendations vary depending on your age, medical history, and where you live. Many countries, including Canada, have transitioned from Pap testing alone to primary HPV testing for eligible individuals because it is more sensitive for detecting high-risk HPV infections.⁸˒¹⁰ Be sure to follow the screening recommendations provided by your healthcare provider or provincial screening program. Finding Answers Receiving an abnormal HPV or cervical screening result can feel overwhelming, but it's important to remember that **most abnormal results do not mean you have cancer.**¹ Depending on your results, your healthcare provider may recommend repeat HPV testing, additional cervical screening, or a colposcopy, which allows the cervix to be examined more closely for abnormal cells.¹⁰ Some healthcare providers may recommend more frequent follow-up after an abnormal result based on your individual risk factors, previous screening history, and the type of HPV detected.¹⁰ Individuals at increased risk for anal cancer, including some people living with HIV and certain men who have sex with men, may also be candidates for anal cancer screening, although recommendations vary by country and individual risk factors.¹¹ What If I Test Positive for HPV 16 or 18? Testing positive for HPV 16 or HPV 18 does not mean you will definitely develop cervical cancer. However, because these are high-risk HPV types, they are more likely to cause persistent infection and cervical cell changes than lower-risk strains.¹˒³ If you test positive for a high-risk HPV type, your healthcare provider may recommend a "watch and wait" approach, which usually involves repeat HPV testing or cervical screening at recommended intervals. This allows your provider to monitor whether the infection clears naturally or whether additional evaluation is needed.¹⁰ This approach is considered safe because cervical cancer usually develops slowly, often over 10 to 20 years following persistent infection with a high-risk HPV type, although progression can occur more quickly in some individuals.¹˒³ If cervical screening identifies more significant abnormalities, your healthcare provider may recommend treatment to remove or destroy the abnormal cells before they become cancerous. Depending on the severity of the changes, treatment options may include procedures such as LEEP (loop electrosurgical excision procedure), cryotherapy, or other evidence-based treatments.¹⁰ There are many situations where a high-risk HPV infection never progresses to cervical cancer. Working closely with your healthcare provider and attending recommended follow-up appointments gives you the best opportunity to monitor your health and receive treatment if it ever becomes necessary. What Can I Do While I "Watch and Wait"? If you've tested positive for HPV, it can feel frustrating to hear that the recommended approach is simply to monitor the infection over time. The good news is that there are evidence-based lifestyle habits that support your overall immune health while your body works to clear the virus.¹⁻³ Support Your Immune System Through Healthy Lifestyle Habits Maintaining a healthy immune system may help your body respond to viral infections more effectively. While no lifestyle change can guarantee HPV clearance, research consistently supports the role of overall health in immune function.²˒¹² Consider focusing on: Eating a nutrient-rich diet filled with vegetables, fruit, whole grains, lean protein, and healthy fats.¹² Exercising regularly to support immune and metabolic health.¹² Prioritizing quality sleep each night.¹³ Managing chronic stress through practices such as mindfulness, yoga, or spending time outdoors.¹³ Avoiding smoking and limiting excessive alcohol intake, both of which are associated with an increased risk of persistent HPV infection and cervical precancer.¹⁴˒¹⁵ These habits support not only your immune system but your overall health and well-being. Supporting Your Nutritional Status Certain nutrients including vitamin A, vitamin C, vitamin E, folate, vitamin B12, zinc, and selenium play important roles in maintaining normal immune function.¹² Papillex® was formulated to provide these key nutrients, along with botanical ingredients such as green tea extract, broccoli sprout extract, medicinal mushrooms, and astragalus, to help support normal immune function and overall wellness. While nutritional supplements are not a treatment for HPV, they may help address nutritional gaps as part of a healthy lifestyle. Always speak with your healthcare provider before starting any new supplement. Be Proactive, Not Fearful Testing positive for HPV is common, and in most people the infection clears naturally without causing long-term health problems.¹ The most important things you can do are: Stay up to date with recommended cervical screening. Attend all follow-up appointments. Support your immune system through healthy lifestyle habits. Discuss any questions or concerns with your healthcare provider. Remember, testing positive for HPV is not a cancer diagnosis. It is simply an opportunity to stay informed, monitor your health, and take proactive steps to support your body's natural defenses. References World Health Organization. Human papillomavirus (HPV) and cervical cancer. Updated March 5, 2025. https://www.who.int/news-room/fact-sheets/detail/human-papillomavirus-(hpv)-and-cervical-cancer Schiffman M, Doorbar J, Wentzensen N, et al. Carcinogenic human papillomavirus infection. Nat Rev Dis Primers. 2016;2:16086. Doorbar J, Quint W, Banks L, et al. The biology and life-cycle of human papillomaviruses. Vaccine. 2012;30(Suppl 5):F55-F70. Bzhalava D, Eklund C, Dillner J. International standardization and classification of human papillomavirus types. Virology. 2015;476:341-344. Garland SM, Steben M. Genital warts. Best Pract Res Clin Obstet Gynaecol. 2014;28(7):1063-1073. Centers for Disease Control and Prevention. Sexually Transmitted Infections Treatment Guidelines, 2021: Human Papillomavirus (HPV) Infection. Updated 2024. de Martel C, Georges D, Bray F, et al. Global burden of cancers attributable to infections in 2022. Lancet Glob Health. 2025;13:e280-e291. Canadian Partnership Against Cancer. Cervical Cancer Screening in Canada: Clinical Practice Guidelines. Updated 2024. Perkins RB, Guido RS, Castle PE, et al. 2019 ASCCP Risk-Based Management Consensus Guidelines for Abnormal Cervical Cancer Screening Tests and Cancer Precursors. J Low Genit Tract Dis. 2020;24(2):102-131. Teoh DGK, Ault KA, Campos NG, et al. Cervical cancer screening and prevention: Contemporary evidence and clinical practice. CA Cancer J Clin. 2023;73(6):604-630. Stier EA, Baranoski AS. Human papillomavirus-related diseases of the anus. Gastroenterol Clin North Am. 2022;51(3):595-610. Gombart AF, Pierre A, Maggini S. A review of micronutrients and the immune system—Working in harmony to reduce the risk of infection. Nutrients. 2020;12(1):236. Besedovsky L, Lange T, Haack M. The sleep-immune crosstalk in health and disease. Physiol Rev. 2019;99(3):1325-1380. Plummer M, Peto J, Franceschi S. Time since first sexual intercourse and the risk of cervical cancer. Int J Cancer. 2012;130(11):2638-2644. International Collaboration of Epidemiological Studies of Cervical Cancer. Carcinoma of the cervix and tobacco smoking: Collaborative reanalysis of individual data. Int J Cancer. 2006;118(6):1481-1495.
Jul 22, 2026
9 min read
Why Do I Keep Getting Sick? 10 Hidden Reasons Your Immune System May Need More Support

Why Do I Keep Getting Sick? 10 Hidden Reasons Your Immune System May Need More Support

Kadia Bielecki
Catching every cold that goes around? Feeling like you're constantly fighting off another virus? While getting sick occasionally is a normal part of life, frequent infections can sometimes be a sign that your immune system isn't functioning at its best. Your immune system relies on adequate nutrition, quality sleep, regular movement, and healthy lifestyle habits to respond effectively to viruses, bacteria, and other pathogens.¹ If you find yourself asking, "Why do I keep getting sick?" These 10 factors may be worth considering. 1. You're Not Getting Enough Sleep Sleep is one of the most powerful regulators of immune health. During sleep, your body produces cytokines and other immune cells that help fight infection. Even a few nights of inadequate sleep can reduce immune defenses and increase susceptibility to viral illnesses.² What you can do: Aim for 7-9 hours of quality sleep each night and maintain a consistent sleep schedule. 2. Chronic Stress Is Suppressing Your Immune System Stress isn't just mentally exhausting; it also affects your immune system. Long-term elevations in cortisol can reduce immune cell activity and make it harder for your body to respond to infections.³ What you can do: Prioritize stress-management strategies such as exercise, mindfulness, spending time outdoors, or talking with supportive friends and family. 3. Your Diet Is Missing Key Immune Nutrients Your immune system depends on a wide variety of vitamins, minerals, and antioxidants to function properly. Nutrients including vitamin C, vitamin D, zinc, selenium, vitamin A, and folate all play important roles in supporting both innate and adaptive immunity.¹,⁴ What you can do: Eat a colourful, whole-food diet rich in fruits, vegetables, legumes, nuts, seeds, lean proteins, and healthy fats. 4. You May Have Low Vitamin D Levels Vitamin D helps regulate immune responses and supports the body's ability to defend against respiratory infections. Low vitamin D status has been associated with an increased risk of upper respiratory tract infections in many populations.⁵ What you can do: Ask your healthcare provider whether vitamin D testing or supplementation may be appropriate for you. 5. You're Not Eating Enough Protein Immune cells, antibodies, and many signaling molecules are made from protein. Inadequate protein intake can impair immune function and slow recovery from illness.⁶ What you can do: Include a quality source of protein with each meal, such as fish, poultry, eggs, dairy, tofu, beans, or lentils. 6. Your Gut Microbiome Needs Support Approximately 70% of the body's immune cells are located within the gut-associated lymphoid tissue. While this doesn't mean 70% of immunity "lives" in the gut, it highlights the close relationship between gut health and immune function. A diverse gut microbiome helps regulate immune responses and supports the intestinal barrier.⁷ What you can do: Eat plenty of fibre-rich foods and include fermented foods such as yogurt, kefir, kimchi, or sauerkraut if tolerated. 7. You Rarely Exercise, or You Overtrain Moderate, regular exercise supports immune surveillance and overall health. However, prolonged high-intensity training without adequate recovery may temporarily suppress immune function.⁸ What you can do: Aim for regular moderate physical activity most days of the week while allowing adequate time for recovery. 8. You Smoke or Drink Excess Alcohol Smoking damages the respiratory tract's natural defenses, while excessive alcohol intake can impair immune cell function and increase susceptibility to infections.⁹ What you can do: If you smoke, seek support to quit. Limiting alcohol intake may also help support overall immune health. 9. You're Recovering From Illness Too Quickly Returning to work, school, or intense exercise before fully recovering can prolong symptoms and leave your immune system under additional strain. What you can do: Give your body adequate time to rest, stay hydrated, and gradually return to your normal routine. 10. An Underlying Health Condition Could Be Contributing Frequent infections may sometimes be related to underlying conditions such as uncontrolled diabetes, autoimmune disorders, nutrient deficiencies, certain medications, or primary immune disorders.¹⁰ What you can do: If you're experiencing frequent, severe, or unusually persistent infections, speak with your healthcare provider for a proper assessment. Can Supplements Help Support Immune Health? Supplements should never replace a healthy lifestyle, but they may help fill nutritional gaps when dietary intake is insufficient. Several nutrients have been extensively studied for their role in immune function, including: Vitamin C Vitamin D Zinc Selenium Vitamin A Folate Vitamin B12 Some botanical ingredients, including green tea extract, medicinal mushrooms, and astragalus, are also being investigated for their potential to support normal immune function.¹¹⁻¹³ The Bottom Line There's rarely a single reason someone keeps getting sick. More often, immune health reflects the combined effects of sleep, nutrition, stress, physical activity, gut health, and overall lifestyle. Supporting your immune system doesn't require perfection. Small, consistent habits, such as improving your sleep, eating a nutrient-dense diet, managing stress, and correcting nutrient deficiencies, can help your immune system function at its best year-round. References Gombart AF, Pierre A, Maggini S. A review of micronutrients and the immune system—working in harmony to reduce the risk of infection. Nutrients. 2020;12(1):236. doi:10.3390/nu12010236 Besedovsky L, Lange T, Haack M. The sleep-immune crosstalk in health and disease. Physiol Rev. 2019;99(3):1325-1380. doi:10.1152/physrev.00010.2018 Segerstrom SC, Miller GE. Psychological stress and the human immune system: a meta-analytic study. Psychol Bull. 2004;130(4):601-630. doi:10.1037/0033-2909.130.4.601 Calder PC. Nutrition, immunity and COVID-19. BMJ Nutr Prev Health. 2020;3(1):74-92. doi:10.1136/bmjnph-2020-000085 Martineau AR, Jolliffe DA, Greenberg L, et al. Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of aggregate data from randomised controlled trials. Lancet Diabetes Endocrinol. 2021;9(5):276-292. doi:10.1016/S2213-8587(21)00051-6 Wu G. Dietary protein intake and human health. Food Funct. 2016;7(3):1251-1265. doi:10.1039/C5FO01530H Zheng D, Liwinski T, Elinav E. Interaction between microbiota and immunity in health and disease. Cell Res. 2020;30(6):492-506. doi:10.1038/s41422-020-0332-7 Nieman DC, Wentz LM. The compelling link between physical activity and the body's defense system. J Sport Health Sci. 2019;8(3):201-217. doi:10.1016/j.jshs.2018.09.009 Szabo G, Saha B. Alcohol's effect on host defense. Alcohol Res. 2015;37(2):159-170. Bonilla FA, Khan DA, Ballas ZK, et al. Practice parameter for the diagnosis and management of primary immunodeficiency. J Allergy Clin Immunol. 2015;136(5):1186-1205.e1-78. doi:10.1016/j.jaci.2015.04.049 Rondanelli M, Miccono A, Lamburghini S, et al. Self-care for common colds: the pivotal role of vitamin D, vitamin C, zinc, and Echinacea in three main immune interactive clusters. Evid Based Complement Alternat Med. 2018;2018:5813095. doi:10.1155/2018/5813095 Li X, Wang X, Chen D, Chen S. Antioxidant and immunomodulatory activity of polysaccharides from medicinal mushrooms. Int J Biol Macromol. 2021;168:641-651. doi:10.1016/j.ijbiomac.2020.12.108 Auyeung KK, Han QB, Ko JK. Astragalus membranaceus: a review of its protection against inflammation and gastrointestinal cancers. Am J Chin Med. 2016;44(1):1-22. doi:10.1142/S0192415X16500014
Jul 20, 2026
5 min read
Sharp-PS®: Can Phosphatidylserine Help Support Memory, Focus, and Stress?

Sharp-PS®: Can Phosphatidylserine Help Support Memory, Focus, and Stress?

Kadia Bielecki
What Is Sharp-PS®? If you've been looking into supplements for brain health, memory, or stress support, you've probably come across Sharp-PS®. Sharp-PS® is a patented, plant-derived form of phosphatidylserine (PS), a naturally occurring phospholipid found in every cell membrane in the body. It is especially concentrated in the brain, where it helps maintain healthy nerve cell structure and supports communication between brain cells.¹ As we age, phosphatidylserine levels may gradually decline, prompting researchers to investigate whether supplementation could help support cognitive function and healthy brain aging.² Let's take a closer look at what the science says. What Does Phosphatidylserine Do? Phosphatidylserine plays several important roles in brain health. It helps: Maintain healthy neuronal cell membranes Support communication between brain cells (neurons) Contribute to neurotransmitter function Support normal memory, attention, and learning processes¹,² Because the brain contains high concentrations of phosphatidylserine, researchers have studied whether supplementation may help preserve cognitive performance throughout adulthood. What Does the Research Say? May Support Memory and Cognitive Function The strongest evidence for phosphatidylserine comes from studies in older adults experiencing age-related memory concerns. Several randomized clinical trials have found that phosphatidylserine supplementation may support aspects of memory, learning, and cognitive performance, particularly in individuals with mild age-associated cognitive decline.³,⁴ A systematic review also concluded that phosphatidylserine shows promise for supporting cognitive function, although larger, longer-term studies are still needed to strengthen the evidence.⁵ May Help Support Focus and Attention Researchers have also explored phosphatidylserine for attention and mental performance. Some studies suggest supplementation may improve attention, processing speed, and executive function in both older adults and younger individuals under demanding cognitive tasks.²,⁶ While findings are encouraging, results have been mixed across studies, highlighting the need for additional high-quality research. May Support a Healthy Stress Response One of phosphatidylserine's most interesting areas of research involves stress. During periods of physical or mental stress, the body produces cortisol, often referred to as the "stress hormone." Some evidence suggests phosphatidylserine supplementation may help support a healthy cortisol response during mentally demanding situations.⁷ It's important to note that phosphatidylserine is not a treatment for anxiety or chronic stress disorders, but it may complement healthy lifestyle habits such as adequate sleep, regular exercise, and stress-management techniques. Who May Benefit? Sharp-PS® may be worth considering for adults who want to support: Healthy memory and learning Focus and concentration Cognitive performance during aging A healthy response to everyday stress Like all dietary supplements, Sharp-PS® works best as part of an overall brain health strategy that includes quality sleep, regular physical activity, social engagement, and a nutrient-rich diet. Is Sharp-PS® Safe? Phosphatidylserine has generally demonstrated a favourable safety profile in human clinical studies when used at recommended doses. Most clinical trials have investigated phosphatidylserine at daily doses ranging from 100 to 300 mg, with 300 mg being the most commonly studied dose for cognitive health. Sharp-PS® in Wellex Creatine Well provides 100 mg per serving, placing it within the range evaluated in human clinical research.³⁻⁷ Mild digestive discomfort has occasionally been reported, as with any dietary supplement, but serious adverse effects are uncommon.¹˒² If you are pregnant, breastfeeding, have a medical condition, or take prescription medications, consult your healthcare provider before starting any new supplement. How Does Sharp-PS® Compare to Other Brain Health Ingredients? Unlike caffeine, which provides short-term stimulation, phosphatidylserine is thought to support the structure and function of neuronal cell membranes. It is also different from ingredients like creatine or citicoline, which influence brain energy metabolism through different mechanisms. These ingredients are sometimes combined because they may provide complementary support. The Bottom Line Sharp-PS® is a well-researched, plant-derived form of phosphatidylserine that supports the structure and function of brain cells. Clinical research suggests it may help support memory, attention, and a healthy stress response, while supporting cognitive health with age. While more long-term studies are needed, the current evidence is promising and supports its role as one component of a comprehensive brain health routine. References Kim HY. Phosphatidylserine in the brain: metabolism and function. Prog Lipid Res. 2013;52(4):457-467. Glade MJ, Smith K. Phosphatidylserine and the human brain. Nutrition. 2015;31(6):781-786. Kato-Kataoka A, Sakai M, Ebina R, Nonaka C, Asano T, Miyamori T. Soybean-derived phosphatidylserine improves memory function of the elderly with memory complaints. J Clin Biochem Nutr. 2010;47(3):246-255. Richter Y, Herzog Y, Lifshitz Y, Hayun R, Zchut S. The effect of soybean-derived phosphatidylserine on cognitive performance in elderly with subjective memory complaints. Clin Interv Aging. 2013;8:557-563. Cenacchi T, Bertoldin T, Farina C, Fiori MG, Crepaldi G. Cognitive decline in the elderly: a double-blind, placebo-controlled multicenter study on efficacy of phosphatidylserine administration. Aging (Milano). 1993;5(2):123-133. Kingsley MI, Miller M, Kilduff LP, McEneny J, Benton D. Effects of phosphatidylserine on cognitive performance during exercise and recovery. Med Sci Sports Exerc. 2006;38(1):64-71. Starks MA, Starks SL, Kingsley M, Purpura M, Jäger R. The effects of phosphatidylserine on endocrine response to moderate-intensity exercise. J Int Soc Sports Nutr. 2008;5:11.
Jul 17, 2026
4 min read
Dear Me: What I Wish I Knew When I Was Diagnosed With PCOS/PMOS

Dear Me: What I Wish I Knew When I Was Diagnosed With PCOS/PMOS

Kadia Bielecki
Hey, you. I know you're scared right now. You just walked out of the doctor's office with a diagnosis that feels heavy, confusing, and full of uncertainty. Polycystic (metabolic) ovary syndrome (PCOS/PMOS) is a term you've never heard before today, and now it feels like something that will define the rest of your life. Take a deep breath. It's okay to feel overwhelmed. It's okay to have questions. It's okay if you're grieving the future you thought you were going to have. But I promise you this: your story is just beginning. The first thing I want you to know is this: PCOS/PMOS is part of your story, but it is not your identity. Right now, it may feel like everything revolves around this diagnosis, but over time you'll realize it's simply one piece of your health. You'll learn what your body needs, become your own advocate, and discover just how resilient you are. If I could go back and tell myself a few things on the day I was diagnosed, this is what I would say. https://youtube.com/shorts/FxhQHC0q9D4?si=6dF-5Yeq_8tmdV6Y Your Body Isn't Working Against You It may feel like your body has let you down. You might wonder what you did wrong or why this happened. The truth is, you didn't cause this. PCOS/PMOS is one of the most common endocrine disorders affecting women of reproductive age. It develops because of a complex combination of genetics, hormone signalling, insulin regulation, and environmental influences. Researchers know that PCOS/PMOS is not caused by a lack of willpower or poor lifestyle choices.¹⁻³ Instead of trying to "fight" your body, start getting curious about it. Keep track of your symptoms, ask questions during appointments, and remember that understanding your body is the first step toward supporting it. There Is No One Right Way to Manage PCOS/PMOS You're about to hear every piece of advice imaginable. "Go keto." "Cut carbs." "Exercise more." "Take this supplement." The reality is that PCOS/PMOS looks different for everyone. Some women primarily experience irregular periods, while others struggle with acne, excess hair growth, insulin resistance, fertility challenges, or weight changes.²˒³ Rather than trying every trend you see online, focus on building a routine that you can actually maintain. The foundations of PCOS/PMOS management are often less about finding the "perfect" diet or supplement and more about supporting your body consistently through lifestyle habits. The 2023 International Evidence-Based Guideline for PCOS/PMOS recommends prioritizing nutrition, regular physical activity, adequate sleep, stress management, and maintaining a healthy relationship with food and your body.¹ Aim for a pattern of eating that includes plenty of vegetables, fruit, whole grains, healthy fats, and lean protein rather than focusing on restrictive diets. Start with one or two sustainable habits, whether that's adding more protein to breakfast, taking a walk after dinner, strength training a few times each week, or creating a consistent bedtime routine. Small, consistent changes are often more powerful than dramatic ones. Build a Healthcare Team You Trust One of the biggest lessons you'll learn is that you don't have to figure everything out alone. Research shows women with PCOS/PMOS are more likely to experience anxiety, depression, body image concerns, and reduced quality of life than women without PCOS/PMOS.⁴⁻⁵ Find healthcare providers who listen to your concerns. Consider working with a registered dietitian if nutrition feels overwhelming, or a mental health professional if you're struggling emotionally. And don't underestimate the value of connecting with other women who understand what you're going through. Your healthcare team may also help you determine whether additional supports could benefit you. Depending on your symptoms and goals, this might include working with a physiotherapist to address pelvic pain, a dermatologist for acne or hair concerns, or discussing whether certain supplements, such as inositol, vitamin D, omega-3 fatty acids, or other evidence-supported options, are appropriate for you.¹ The best plan is one that's individualized to your needs. Learn About Blood Sugar Early Even if your doctor doesn't mention insulin resistance today, it's something worth learning about. Approximately 50% to 75% of women with PCOS/PMOS have some degree of insulin resistance, regardless of body weight.² The good news is that you don't have to change everything overnight. Start by: Pairing carbohydrates with protein or healthy fats. Eating fibre-rich foods at most meals. Moving your body regularly, including resistance training a few times per week when possible. Eating consistently instead of skipping meals. Prioritizing quality sleep, since poor sleep can make blood sugar regulation more challenging. Finding healthy ways to manage stress, as chronic stress can also affect hormones and metabolic health. These simple habits work together to support healthy blood sugar regulation and may help improve energy, cravings, ovulation, and overall metabolic health over time.¹˒²˒⁶ Remember that lifestyle changes don't have to be all-or-nothing. Every nourishing meal, every walk, every workout, every good night's sleep, and every small act of self-care is another way of supporting your body. It's Okay to Grieve the Expectations You Had You might worry about your fertility. You might feel frustrated by symptoms that seem invisible to everyone else. You might mourn the effortless relationship with your body you thought you'd have. Those feelings are completely valid. But this diagnosis doesn't mean your future has been written. Many women with PCOS/PMOS successfully manage their symptoms, improve their health, and go on to have healthy pregnancies if they choose to.² Give yourself permission to feel disappointed today, but don't let today's emotions convince you that tomorrow won't look different. Measure Progress Differently One thing I wish I knew sooner is that healing isn't always obvious. Success isn't only measured by the number on the scale or whether your cycle is perfectly regular. Sometimes progress looks like: Having more energy during the day. Feeling fewer cravings. Sleeping better. Feeling more confident in your choices. Finding a routine that feels sustainable. Those wins matter, too. Don't Put Your Life on Hold PCOS/PMOS deserves your attention, but it doesn't deserve to become your entire personality. Go celebrate birthdays. Travel. Enjoy dinner with friends. Eat dessert sometimes. Chase your goals. Take care of your health because you love yourself, not because you're trying to earn the right to enjoy your life. One Day You'll Look Back Differently Looking back, I don't remember the fear nearly as much as I remember everything it taught me. I learned how to advocate for myself. I learned to pay attention to what my body was telling me. I learned that health isn't about being perfect, it's about finding habits that help me feel my best. So take a deep breath. You don't need to have everything figured out today. Start with one question.One healthy habit.One appointment.One step. Before you know it, those small steps will become a life that feels manageable again. PCOS/PMOS is one chapter of your story. It is not the whole book. With love, Your Future Self References Teede HJ, Misso ML, Costello MF, et al. Recommendations from the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome. Fertil Steril. 2023;120(5):984-999. Azziz R, Carmina E, Chen Z, et al. Polycystic ovary syndrome. Nat Rev Dis Primers. 2016;2:16057. Lizneva D, Suturina L, Walker W, Brakta S, Gavrilova-Jordan L, Azziz R. Criteria, prevalence, and phenotypes of polycystic ovary syndrome. Fertil Steril. 2016;106(1):6-15. Cooney LG, Lee I, Sammel MD, Dokras A. High prevalence of moderate and severe depressive and anxiety symptoms in polycystic ovary syndrome: A systematic review and meta-analysis. Hum Reprod. 2017;32(5):1075-1091. Dokras A, Stener-Victorin E, Yildiz BO, et al. Androgen Excess-Polycystic Ovary Syndrome Society: Position statement on depression, anxiety, quality of life, and eating disorders in polycystic ovary syndrome. Fertil Steril. 2018;109(5):888-899. Moran LJ, Ko H, Misso M, Marsh K, Noakes M, Talbot M, et al. Dietary composition in the treatment of polycystic ovary syndrome: A systematic review to inform evidence-based guidelines. J Acad Nutr Diet. 2013;113(4):520-545. Neff KD. Self-compassion: Theory, method, research, and intervention. Annu Rev Psychol. 2023;74:193-218.
Jul 16, 2026
6 min read
AHCC vs. Turkey Tail vs. Reishi: Which Mushroom Supplement Has the Most Research for Immune Health?

AHCC vs. Turkey Tail vs. Reishi: Which Mushroom Supplement Has the Most Research for Immune Health?

Kadia Bielecki
Comparing the Science Behind Three of the Most Popular Medicinal Mushroom Supplements Interest in medicinal mushrooms has exploded in recent years. A quick search online reveals countless supplements claiming to support immune function, improve resilience, and promote overall wellness. Among the most popular are AHCC®, turkey tail, and reishi: three mushroom-derived ingredients that are often discussed together but work in very different ways. If you've been researching immune support supplements, you've likely come across questions such as: Should I take AHCC or turkey tail? Which mushroom supplement has the most research? Is reishi good for the immune system? Which medicinal mushroom is best supported for overall health? These are important questions because not all mushroom supplements have the same level of scientific evidence behind them. While many contain bioactive compounds that may help support immune function, the amount and quality of human clinical research varies considerably. In this article, we'll compare AHCC, turkey tail, and reishi by exploring how they're made, how they work, what the current research says, and which supplement has the strongest evidence for immune health. Which Mushroom Supplement Has the Most Research? The Short Answer Among the three, AHCC currently has the strongest body of human clinical research supporting its role in immune health. Turkey tail and reishi have also demonstrated promising immune-supportive properties, particularly in laboratory, animal, and some human studies, but the quantity of well-designed clinical trials differs between these ingredients.¹⁻⁴ Importantly, these supplements are not interchangeable. Each contains different bioactive compounds, has unique mechanisms of action, and may be better suited to different health goals. Understanding these differences can help you make a more informed decision when choosing an evidence-based immune support supplement. What Are Medicinal Mushrooms? Medicinal mushrooms have been used in traditional medicine for centuries, particularly throughout Asia, where they have been valued for their potential to support immune function, vitality, and overall health. Today, advances in analytical science have allowed researchers to identify many of the compounds responsible for these biological effects.⁵ Although commonly grouped together, medicinal mushrooms are not one ingredient. Instead, they represent a diverse collection of fungal species, each containing its own unique combination of naturally occurring compounds. Some of the best-known medicinal mushrooms include: Shiitake (Lentinula edodes) Turkey tail (Trametes versicolor) Reishi (Ganoderma lucidum) Maitake (Grifola frondosa) Cordyceps (Cordyceps militaris) Lion's mane (Hericium erinaceus) Many medicinal mushrooms contain naturally occurring compounds such as: Beta-glucans, complex polysaccharides that help regulate immune activity rather than simply "boosting" it.⁶ Polysaccharides, which may influence communication between immune cells. Triterpenes, found primarily in reishi, that have been studied for their antioxidant and anti-inflammatory properties.⁷ Phenolic compounds and antioxidants, which may help protect cells from oxidative stress.⁵ Rather than stimulating the immune system indiscriminately, many medicinal mushrooms appear to act as immune modulators, meaning they help support healthy immune function by influencing communication between different immune cells.⁶ However, it's important to recognize that the concentration and composition of these bioactive compounds can vary significantly between species, extraction methods, and commercial products. This is one reason why research findings from one mushroom cannot automatically be applied to another. One ingredient that stands apart from traditional mushroom extracts is AHCC. What Is AHCC? AHCC® (Active Hexose Correlated Compound) is not a whole mushroom powder. Instead, it is a proprietary, standardized extract produced from the cultured mycelia: the root-like network of shiitake mushrooms (Lentinula edodes).¹ Unlike many medicinal mushroom supplements that primarily contain beta-glucans, AHCC undergoes a unique fermentation process that results in a high concentration of low-molecular-weight alpha-glucans, compounds that are believed to be more readily absorbed by the body.¹ This unique composition has made AHCC one of the most extensively researched mushroom-derived ingredients available today. Researchers have investigated AHCC for its potential role in supporting several aspects of immune function, including: Natural killer (NK) cell activity T-cell function Dendritic cell activity Cytokine signalling Overall immune resilience¹⁻³ Rather than acting as a stimulant to the immune system, AHCC appears to help support communication and coordination between different immune cells, allowing the body's natural defence mechanisms to respond appropriately.² What Does the Research Say About AHCC? AHCC has been evaluated in numerous human clinical studies examining immune health. Research suggests that AHCC supplementation may help support the activity of several key components of the immune system, including natural killer cells and T lymphocytes, both of which play important roles in identifying and responding to viruses and other immune challenges.²,³ One area receiving considerable scientific attention is persistent human papillomavirus (HPV). Several pilot studies and subsequent clinical trials have investigated AHCC as a nutritional intervention for women with persistent high-risk HPV infections. Early findings suggest AHCC supplementation may support immune function in a way that helps some individuals naturally clear persistent HPV, although larger studies are still ongoing and additional research is needed before definitive conclusions can be made.⁸⁻¹⁰ Beyond HPV, researchers have also explored AHCC in populations experiencing increased immune demands, including older adults and individuals undergoing certain medical treatments. Across these studies, AHCC has generally demonstrated a favourable safety profile and appears to support healthy immune function without overstimulating the immune system.² It's important to emphasize that AHCC is not a treatment or cure for viral infections or disease. Rather, current evidence suggests it may help support normal immune function as part of a comprehensive approach that includes adequate nutrition, sleep, stress management, regular physical activity, and appropriate medical care when needed. Why AHCC Has Become a Focus of Clinical Research Compared with many other mushroom supplements, AHCC has several characteristics that have made it attractive to researchers: It is a standardized ingredient, meaning its composition remains consistent from batch to batch. It has been evaluated in numerous human clinical trials rather than relying primarily on laboratory or animal studies. Its manufacturing process has been well characterized, improving the reproducibility of research findings. Multiple studies have examined measurable changes in immune cell activity rather than relying solely on subjective outcomes.¹⁻³ This doesn't necessarily mean AHCC is the "best" mushroom supplement for everyone. Instead, it means that its evidence base is currently more robust than many other mushroom-derived ingredients, particularly when discussing immune health in humans. What Is Turkey Tail? Turkey tail (Trametes versicolor) is one of the most well-known medicinal mushrooms in the world. Named for its colourful, fan-shaped appearance that resembles the tail feathers of a wild turkey, it has been used in Traditional Chinese Medicine and Japanese herbal medicine for centuries to support overall health and vitality.¹¹ Today, turkey tail is best known for its naturally occurring beta-glucans, particularly two compounds called polysaccharide-K (PSK) and polysaccharopeptide (PSP). These compounds have been extensively studied for their ability to interact with the immune system.¹² Unlike AHCC, which is produced from cultured shiitake mycelia using a proprietary fermentation process, turkey tail supplements are typically derived from the fruiting body or mycelium of the mushroom itself. Researchers believe turkey tail works primarily by helping regulate immune activity through interactions with immune cells such as macrophages, dendritic cells, natural killer (NK) cells, and T lymphocytes.¹²,¹³ Rather than "boosting" immunity, turkey tail appears to help the immune system respond appropriately to challenges while supporting a balanced inflammatory response. What Does the Research Say About Turkey Tail? Turkey tail has been studied extensively in laboratory and animal models, with a growing body of human research supporting its role in immune health. One of its best-known applications is as an adjunct therapy during cancer treatment, particularly in Japan, where PSK has been approved for use alongside conventional cancer therapies for certain cancers.¹⁴ It is important to note that these studies involve medically supervised treatment protocols and should not be interpreted to mean turkey tail treats or cures cancer. Outside of oncology, researchers have investigated turkey tail for its potential to: Support healthy immune function Promote gut microbiome diversity Enhance natural killer (NK) cell activity Support recovery following illness Help maintain a healthy inflammatory response¹²,¹⁵ Emerging evidence also suggests that turkey tail's beta-glucans may act as prebiotics, serving as a food source for beneficial gut bacteria. Because approximately 70% of the body's immune cells are located within the gastrointestinal tract, supporting gut health may indirectly contribute to healthy immune function.¹⁶ While these findings are encouraging, much of the strongest clinical evidence for turkey tail comes from specific patient populations rather than healthy adults. More large-scale randomized controlled trials are needed to determine its long-term effects in the general population. What Is Reishi? Reishi (Ganoderma lucidum), sometimes referred to as the "mushroom of immortality," has been used in traditional Eastern medicine for more than 2,000 years.¹⁷ Unlike AHCC and turkey tail, which are primarily discussed in relation to immune health, reishi is often associated with stress resilience, sleep quality, and overall wellness. Reishi contains several biologically active compounds, including: Beta-glucans Triterpenes Polysaccharides Sterols Antioxidants¹⁷ Researchers believe these compounds may help regulate immune activity while also influencing inflammatory pathways and oxidative stress. Because chronic stress can negatively affect immune function, reishi has attracted attention for its potential ability to support both psychological well-being and immune resilience simultaneously.¹⁸ What Does the Research Say About Reishi? Although reishi has been studied for decades, the quality of evidence varies depending on the health outcome being investigated. Human studies suggest reishi may help support: Healthy immune function Antioxidant defenses Normal inflammatory responses Fatigue management Overall quality of life in certain populations¹⁸,¹⁹ Some studies have also observed changes in immune markers, including natural killer cell activity and cytokine production. However, many of these trials are relatively small, involve participants with specific medical conditions, or use different reishi preparations, making it difficult to compare results directly.¹⁹ Unlike AHCC, reishi has not been studied as extensively in large human clinical trials specifically evaluating immune function in healthy individuals. That doesn't mean reishi isn't beneficial. Rather, it highlights an important distinction: traditional use and promising laboratory findings are not the same as strong clinical evidence from randomized controlled trials. AHCC, Turkey Tail, and Reishi: How Do They Compare? Although these supplements are often grouped together as "medicinal mushrooms," they differ considerably in their composition, mechanisms of action, and level of scientific evidence. Feature AHCC Turkey Tail Reishi Source Cultured shiitake mycelia extract Trametes versicolor mushroom Ganoderma lucidum mushroom Primary Active Compounds Alpha-glucans Beta-glucans (PSK, PSP) Beta-glucans, triterpenes Primary Research Focus Immune cell function, immune resilience, persistent HPV Immune modulation, gut health, adjunct oncology research Stress resilience, immune modulation, inflammation support Human Clinical Evidence Extensive Moderate Moderate Traditional Use Modern standardized ingredient Extensive Extensive Best Known For Supporting healthy immune function with a strong body of clinical research Immune and gut health Stress support and overall wellness Key Takeaway All three supplements contain bioactive compounds that may help support immune health, but they are not interchangeable. AHCC has been the subject of the largest body of human clinical research focused on immune function. Turkey tail has substantial research supporting immune modulation and gut health, particularly in clinical settings, while reishi is best known for its adaptogenic properties and its potential role in supporting stress resilience alongside immune health. In the next section, we'll compare AHCC vs. turkey tail and AHCC vs. reishi directly, exploring which supplement may be the better choice depending on your individual health goals. AHCC vs. Turkey Tail: Which Has the Stronger Evidence? AHCC and turkey tail are often compared because both are widely used to support immune health. While they share some similarities, they differ significantly in how they are produced, how they've been studied, and the amount of human clinical evidence available. Mechanism of Action Both AHCC and turkey tail help support immune function, but they contain different bioactive compounds. AHCC is rich in low-molecular-weight alpha-glucans, which are produced through a proprietary fermentation process using shiitake mushroom mycelia. Researchers believe these compounds help regulate communication between immune cells, including natural killer (NK) cells, dendritic cells, and T lymphocytes.¹⁻³ Turkey tail, on the other hand, contains naturally occurring beta-glucans, including PSK and PSP. These compounds have been shown to interact with immune cells through different signalling pathways and may also support gut health by acting as prebiotics.¹²,¹⁵ While both ingredients appear to support healthy immune function, they do so through different biological mechanisms. Clinical Research This is where the largest difference becomes apparent. AHCC has been evaluated in numerous human clinical studies examining immune function, immune resilience, and persistent high-risk HPV. Several randomized trials have demonstrated measurable changes in immune cell activity following supplementation.²,⁸⁻¹⁰ Turkey tail also has an impressive research history, but much of the strongest evidence comes from: Laboratory studies Animal research Adjunct use alongside conventional cancer treatment Smaller human studies¹²⁻¹⁵ For healthy adults looking for an evidence-based immune support supplement, AHCC currently has a larger body of human clinical research specifically evaluating immune outcomes. Gut Health One area where turkey tail has a unique advantage is gut health. Its beta-glucans and polysaccharides appear to act as prebiotics, helping nourish beneficial bacteria within the digestive tract.¹⁶ Because the gut and immune system are closely connected, maintaining a healthy microbiome may contribute to overall immune resilience. AHCC has not been studied as extensively for microbiome support, making turkey tail an interesting option for individuals specifically looking to support digestive health alongside immune function. Which Is Better? The answer depends on your goals. If your primary objective is choosing the ingredient with the strongest body of human clinical evidence for immune support, AHCC currently stands out. If your focus is supporting both gut health and immune function, turkey tail may also be worth considering. Rather than viewing these supplements as competitors, it may be more accurate to think of them as different tools with overlapping, but distinct, areas of research. AHCC vs. Reishi: What's the Difference? Although both AHCC and reishi are commonly included in immune support supplements, they serve somewhat different purposes. AHCC research has largely focused on immune cell function, while reishi has traditionally been studied for its potential effects on stress, sleep, inflammation, and overall wellness.¹⁷,¹⁸ Immune Support Both ingredients appear to influence immune activity, but the evidence differs. AHCC has been investigated in multiple human clinical trials evaluating measurable changes in immune markers, including natural killer cell activity and T-cell responses.²,³ Reishi has also demonstrated immune-modulating effects in laboratory and human studies, but the overall quantity of high-quality clinical evidence remains smaller.¹⁸,¹⁹ Stress and Sleep One area where reishi stands apart is its potential role in supporting stress resilience. Traditional use and early clinical research suggest reishi may help promote relaxation, reduce fatigue, and support healthy sleep, although additional well-designed studies are needed.¹⁸ Because chronic stress can negatively affect immune function, improving stress resilience may indirectly contribute to better overall immune health. AHCC has not been studied extensively for stress or sleep outcomes. Research Quality When comparing the strength of evidence, it's important to distinguish between: Laboratory studies Animal studies Human observational research Randomized controlled clinical trials All three types of research contribute valuable information, but randomized controlled trials generally provide the strongest level of evidence for determining whether a supplement works in people. Currently, AHCC has the largest body of human clinical research specifically evaluating immune function. Turkey tail follows with a growing body of evidence, while reishi has promising but comparatively less robust clinical data for immune outcomes.¹⁻⁴ So, Which Mushroom Supplement Is Best? There isn't a single "best" medicinal mushroom for everyone. The right choice depends on your individual health goals, overall lifestyle, and the specific outcomes you're hoping to support. Here's a simplified comparison: AHCC may be a good option if you are looking for: A standardized ingredient supported by human clinical research Immune resilience An ingredient with growing evidence in persistent high-risk HPV research An evidence-based immune support supplement¹⁻³ Turkey Tail may be a good option if your goals include: General immune support Supporting a healthy gut microbiome Increasing dietary beta-glucans Overall wellness alongside digestive health¹²,¹⁶ Reishi may be a good option if you're primarily interested in: Stress management Sleep support Adaptogenic wellness General immune health¹⁷,¹⁸ It's also worth noting that many comprehensive mushroom supplements combine multiple mushroom species. While this approach may offer broader exposure to different bioactive compounds, it can also make it difficult to determine which ingredient is responsible for any observed benefits. In addition, combination products often contain lower amounts of each individual mushroom than the doses evaluated in clinical studies. For this reason, it's helpful to look beyond marketing claims and consider whether the ingredients and doses used in a product align with those studied in human research. Are Medicinal Mushroom Supplements Safe? For most healthy adults, medicinal mushroom supplements are generally considered to have a favourable safety profile when taken as directed. However, "natural" does not always mean risk-free, and it's important to choose high-quality products and speak with your healthcare provider before starting any new supplement, especially if you have an underlying medical condition or take prescription medications. Reported side effects are typically mild and may include: Mild digestive upset Bloating Nausea Diarrhea Allergic reactions in individuals with mushroom allergies¹⁻³ Some medicinal mushrooms may also interact with medications, including: Immunosuppressant medications Blood-thinning medications Certain chemotherapy agents Diabetes medications Blood pressure medications¹⁷,²⁰ If you are pregnant, breastfeeding, have an autoimmune condition, or are undergoing treatment for a medical condition, consult your healthcare provider before taking medicinal mushroom supplements. What Should You Look for in a Quality Mushroom Supplement? Not all mushroom supplements are created equal. Product quality can vary significantly depending on the mushroom species, extraction method, growing conditions, and manufacturing standards. One product may contain a concentrated extract standardized for bioactive compounds, while another may contain mostly starch or filler with very little active ingredient.¹⁶ When evaluating a supplement, consider the following: Standardized Ingredients Look for ingredients that have been standardized and evaluated in human clinical research. Standardization helps ensure consistency from batch to batch and allows the product to more closely match those used in published studies. Transparent Labeling Choose products that clearly list: Mushroom species Plant part used (fruiting body or mycelium) Extraction method Amount of active ingredient per serving Third-Party Testing Independent testing for identity, purity, and contaminants provides additional confidence in product quality. Research-Backed Doses Many products include proprietary blends without disclosing the amount of each ingredient. Whenever possible, choose supplements that provide doses similar to those evaluated in clinical research. The Bottom Line: Which Mushroom Supplement Has the Strongest Evidence? AHCC, turkey tail, and reishi are all fascinating ingredients with long histories of traditional use and growing scientific interest. However, they should not be viewed as interchangeable. Each contains different bioactive compounds, works through different biological mechanisms, and has been studied for different health outcomes. Based on the current body of evidence: AHCC has the strongest body of human clinical research supporting immune function, including studies examining natural killer cell activity, T-cell function, immune resilience, and persistent high-risk HPV.²,³,⁸⁻¹⁰ Turkey tail has promising evidence for immune modulation and gut health, with particularly strong research in adjunct oncology settings, although more studies in healthy adults are needed.¹²⁻¹⁵ Reishi appears to offer broader wellness benefits, including potential support for stress resilience, healthy inflammatory responses, and immune function, but the clinical evidence remains less extensive than that available for AHCC.¹⁷⁻¹⁹ Ultimately, the "best" supplement depends on your individual health goals. No supplement replaces the foundations of a healthy immune system. Adequate sleep, regular physical activity, a nutrient-rich diet, stress management, and appropriate medical care remain the cornerstones of long-term immune health. When used alongside these lifestyle habits, evidence-based supplements may provide additional support for some individuals. Frequently Asked Questions Is AHCC better than turkey tail? AHCC currently has a larger body of human clinical research evaluating immune function. Turkey tail also has promising evidence, particularly for immune modulation and gut health, but much of its strongest research comes from oncology and laboratory settings. What mushroom supplement has the most research? Among commonly available medicinal mushroom supplements, AHCC is one of the most extensively studied in human clinical trials for immune health. Turkey tail and reishi also have growing research, but the quantity and quality of evidence varies depending on the health outcome being evaluated. Is AHCC the same as turkey tail? No. AHCC is a standardized extract produced from cultured shiitake mushroom mycelia, while turkey tail is an entirely different mushroom species (Trametes versicolor) that contains different bioactive compounds. Is reishi good for the immune system? Research suggests reishi may help support healthy immune function while also providing antioxidant and stress-supportive properties. However, additional high-quality human studies are needed before firm conclusions can be made. Can you take AHCC and turkey tail together? Some healthcare practitioners may recommend combination approaches depending on an individual's health goals. However, there is currently limited clinical research evaluating the combined use of AHCC and turkey tail. Always consult your healthcare provider before combining supplements. Is AHCC worth taking? For individuals looking for an immune support supplement backed by human clinical research, AHCC is one of the most extensively studied options currently available. While results vary between individuals and more research is still needed for certain applications, the existing evidence is stronger than that available for many other mushroom-derived ingredients.²,³ References Spierings ELH, Fujii H, Sun B, Walshe T. A phase I study of the safety and tolerability of Active Hexose Correlated Compound (AHCC) in healthy volunteers. J Nutr Sci Vitaminol (Tokyo). 2007;53(6):536-539. Shin MS, Park HJ, Maeda T, Nishioka H, Fujii H, Kang I. The effects of AHCC®, a standardized extract of cultured Lentinula edodes mycelia, on natural killer and T cells in health and disease: Review of human and animal studies. J Immunol Res. 2019;2019:3758576. Roman BE, Beli E, Duriancik DM, Gardner EM. Short-term supplementation with Active Hexose Correlated Compound improves immune function. Nutr Res. 2013;33(1):12-17. Ritz BW. Active Hexose Correlated Compound (AHCC) and immune outcomes in humans: A review. Nutritional Immunology. 2011. Wasser SP. Medicinal mushrooms as a source of antitumor and immunomodulating polysaccharides. Appl Microbiol Biotechnol. 2002;60(3):258-274. Vetvicka V, Vetvickova J. β-Glucans and their immunomodulatory effects. JANA. 2014;17(2):31-39. Sanodiya BS, Thakur GS, Baghel RK, Prasad GBKS, Bisen PS. Ganoderma lucidum: A potent pharmacological macrofungus. Curr Pharm Biotechnol. 2009;10(8):717-742. Smith JA, Mathew L, Gaikwad A, et al. AHCC supplementation to support host immune responses in persistent HPV infection. Front Oncol. 2019. Smith JA, et al. AHCC supplementation and clearance of persistent high-risk HPV infections: A randomized pilot study. Front Oncol. 2022. Smith JA. Nutritional support for persistent HPV infections: Emerging evidence for AHCC. Front Oncol. 2024. Eliza WL, Fai CK, Chung LP. Efficacy of Trametes versicolor in supporting immune function: A review. Recent Pat Food Nutr Agric. 2012;4(1):45-56. Hobbs C. Medicinal value of Trametes versicolor. Altern Complement Ther. 2004;10(1):33-40. Standish LJ, Wenner CA, Sweet ES, et al. Trametes versicolor mushroom immune therapy in breast cancer. ISRN Oncol. 2012;2012:251632. Nakazato H, Koike A, Saji S, Ogawa N, Sakamoto J. Efficacy of immunochemotherapy using PSK in gastrointestinal cancer. Lancet. 1994;343(8906):1122-1126. Chu KK, Ho SS, Chow AH. Coriolus versicolor: A medicinal mushroom with promising immunotherapeutic values. J Clin Pharmacol. 2002;42(9):976-984. Belkaid Y, Hand TW. Role of the microbiota in immunity and inflammation. Cell. 2014;157(1):121-141. Wachtel-Galor S, Yuen J, Buswell JA, Benzie IFF. Ganoderma lucidum (Lingzhi or Reishi): A medicinal mushroom. In: Benzie IFF, Wachtel-Galor S, eds. Herbal Medicine: Biomolecular and Clinical Aspects. 2nd ed. CRC Press; 2011. Cochrane Complementary Medicine Group. Ganoderma lucidum for cancer treatment. Cochrane Database Syst Rev. 2016;(4):CD007731. Lam CS, Cheng LP, Zhou LM, et al. Herb-drug interactions between the medicinal mushrooms Lingzhi and Yunzhi and cytotoxic anticancer drugs: A systematic review. Chin Med. 2020;15:75. National Center for Complementary and Integrative Health. Dietary supplements: What you need to know.
Jul 14, 2026
18 min read
The 5 Steps to Healing HPV

The 5 Steps to Healing HPV

Kadia Bielecki
Receiving an HPV diagnosis from your healthcare provider can leave you feeling confused, frustrated, and overwhelmed. Many women are told that the next step is to "watch and wait," with repeat Pap testing or HPV screening months or even years later. While this approach is appropriate from a medical surveillance standpoint because many HPV infections resolve spontaneously, it can leave patients wondering whether there is anything they can do to support their health in the meantime.¹⁻³ The truth is that human papillomavirus (HPV) is incredibly common. Approximately 80% of sexually active people will acquire an HPV infection at some point during their lifetime.¹ High-risk HPV types are responsible for nearly all cases of cervical cancer, as well as a substantial proportion of anal, vaginal, vulvar, penile, and oropharyngeal cancers.²,³ Fortunately, most HPV infections are cleared naturally by the immune system within one to two years and never progress to cancer.¹,² https://youtube.com/shorts/w_JYKWz36tk?si=bQBMkSaBzWZPyHW1 Each year, however, millions of women receive abnormal cervical screening results, and many are diagnosed with cervical dysplasia or persistent HPV infection.¹,³ While regular screening and appropriate medical follow-up remain essential, growing research suggests that factors such as immune function, nutrition, oxidative stress, inflammation, metabolic health, and the vaginal microbiome may also influence whether HPV persists or is cleared.⁴⁻⁹ At Wellex®, we believe knowledge is empowering. Although no dietary supplement or lifestyle strategy can cure HPV, there are evidence-based ways to support your immune system and overall health while working alongside your healthcare provider. Here are five important areas to consider. 1. Consider Nutrient Deficiencies When most people think about nutrition, they think of protein, carbohydrates, and fats. While these macronutrients are important, vitamins, minerals, and plant compounds known as micronutrients also play essential roles in maintaining healthy immune function, cellular repair, antioxidant defense, and normal DNA synthesis.¹⁰,¹¹ Because HPV relies on the host's cells to replicate, the body's immune system is the primary defense responsible for clearing the virus. Nutritional status can influence immune function, and deficiencies in certain vitamins and minerals have been associated with impaired immune responses.¹⁰,¹² Several observational studies have found that women with persistent HPV infection or cervical dysplasia are more likely to have lower dietary intake or blood levels of key micronutrients, although these findings demonstrate association rather than causation. Nutrients that have been most consistently studied include: Folate Vitamin A and carotenoids Vitamin C Vitamin E Selenium Zinc Lycopene These nutrients contribute to antioxidant defenses, immune cell function, DNA repair, and protection against oxidative stress, all of which may influence cervical health.¹³⁻²⁰ Carotenoids such as lycopene, lutein, and beta-carotene have also been investigated for their potential role in supporting healthy cervical cells. Several epidemiological studies suggest that women with higher dietary intake or blood concentrations of these antioxidants may have a lower risk of persistent HPV infection or progression of cervical dysplasia, although more randomized clinical trials are needed.¹⁶⁻²⁰ It is also important to remember that nutrient deficiencies are common. Dietary patterns low in fruits, vegetables, legumes, nuts, seeds, and whole grains may reduce intake of several nutrients involved in immune health. Optimizing overall nutrition is one practical way to support the body's natural defenses.¹⁰,¹¹ Rather than focusing on a single vitamin, aim for a nutrient-dense dietary pattern rich in colourful vegetables, fruits, lean proteins, legumes, healthy fats, and high-fibre carbohydrates. If deficiencies are suspected, speak with your healthcare practitioner about appropriate testing and supplementation. 2. Consider Inflammation and Oxidative Stress Inflammation is a normal part of the immune response, but chronic inflammation can contribute to tissue damage when it becomes prolonged. Increasing evidence suggests that oxidative stress and persistent inflammation play important roles in HPV persistence and the progression from cervical dysplasia to cervical cancer.⁵,²¹ High-risk HPV produces viral proteins known as E6 and E7, which interfere with normal cellular regulation. These proteins contribute to oxidative stress, alter immune signalling, and disrupt the body's normal ability to repair damaged DNA.²²⁻²⁵ Over time, these changes may increase the likelihood that HPV persists rather than being cleared by the immune system. Oxidative stress occurs when the production of reactive oxygen species exceeds the body's antioxidant capacity. Research has found higher markers of oxidative stress in women with persistent HPV infection and cervical intraepithelial neoplasia compared with healthy controls.²¹,²³ Lifestyle habits that may help support a healthy inflammatory response include: Eating an antioxidant-rich diet with plenty of colourful fruits and vegetables Including healthy fats such as olive oil, nuts, seeds, and omega-3-rich fish Exercising regularly Prioritizing restorative sleep Managing chronic stress Avoiding smoking, which is one of the strongest modifiable risk factors for persistent HPV infection and cervical cancer.²⁶ Although these strategies cannot eliminate HPV, they support overall immune health and may help create an environment that is more favourable for viral clearance. 3. Consider the Vaginal Microbiome The vagina is home to a complex community of microorganisms known as the vaginal microbiome. In healthy reproductive-aged women, this ecosystem is typically dominated by Lactobacillus species, which help maintain an acidic vaginal pH and produce compounds that inhibit the growth of potentially harmful bacteria and viruses.²⁷⁻²⁹ Over the past decade, research has shown that the vaginal microbiome may play an important role in HPV persistence and cervical health. Women whose vaginal microbiome is dominated by Lactobacillus species appear to be more likely to clear HPV infections, while those with reduced Lactobacillus and greater microbial diversity are more likely to experience persistent HPV infection and cervical dysplasia.³⁰⁻³⁴ Although researchers are still working to better understand this relationship, Lactobacillus species are thought to support cervical health by: Maintaining an acidic vaginal environment Strengthening the cervical epithelial barrier Producing antimicrobial compounds Helping regulate local immune responses Reducing inflammation within the cervical environment²⁸,³⁰,³¹ Because HPV infects the cells lining the cervix, maintaining a healthy vaginal environment may be one factor that supports the body's natural ability to clear the virus. Stress and the Vaginal Microbiome Stress affects far more than mental health. Chronic psychological stress has been associated with changes in immune function, hormone regulation, and the composition of the vaginal microbiome.³⁵⁻³⁸ One proposed mechanism involves cortisol, the body's primary stress hormone. Persistently elevated cortisol levels can influence immune signaling and may contribute to reductions in beneficial Lactobacillus species, creating conditions that may favor vaginal dysbiosis.³⁶,³⁷ Several observational studies have also found associations between higher perceived stress and an increased likelihood of bacterial vaginosis, sexually transmitted infections, and persistent HPV infection, although additional research is needed to better understand these relationships.³⁸⁻⁴⁰ While stress alone does not cause HPV, managing chronic stress may support immune resilience and overall reproductive health. Targeted Vaginal Support Because HPV infects the cervical and vaginal epithelium, researchers have also explored whether delivering therapeutic ingredients directly to the vaginal tissue may provide localized support. Vaginal suppositories allow active ingredients to come into direct contact with the affected tissue, offering a targeted approach alongside appropriate medical care. Certain vitamins, botanical extracts, and plant compounds have been investigated for their potential to support healthy cervical tissue and local immune function. Ingredients that have been studied include: Vitamin A Vitamin C Green tea extract (epigallocatechin gallate [EGCG]) Thuja (Thuja occidentalis) Echinacea (Echinacea purpurea) Goldenseal (Hydrastis canadensis) Some preliminary studies suggest that topical or intravaginal therapies containing these ingredients may help support normal cervical tissue, local immune responses, and the management of HPV-related cervical abnormalities. However, the evidence remains limited, and larger, high-quality clinical trials are needed before these therapies can be routinely recommended.⁶²⁻⁶⁶ If you are considering vaginal suppositories or other complementary therapies, it is important to speak with your healthcare practitioner to determine whether they are appropriate for your individual situation. In addition to targeted therapies, simple lifestyle habits can also help support both the vaginal microbiome and immune function: Prioritizing seven to nine hours of quality sleep each night Managing stress through mindfulness, meditation, yoga, or counseling Eating a diet rich in fiber and fermented foods Avoiding smoking Using antibiotics only when medically necessary Speaking with your healthcare provider about whether probiotics may be appropriate for your individual needs A healthy vaginal microbiome is only one piece of the puzzle, but growing evidence suggests it may influence how the body responds to HPV. 4. Consider Blood Sugar Balance Blood sugar regulation is not often discussed in conversations about HPV, but metabolic health plays an important role in immune function. Research has shown that chronic hyperglycemia and insulin resistance can impair both innate and adaptive immunity, reduce the function of immune cells, and increase systemic inflammation.⁴¹⁻⁴³ These changes may make it more difficult for the body to respond effectively to viral infections. Insulin resistance has also been associated with increased oxidative stress and chronic low-grade inflammation, two factors that are believed to contribute to HPV persistence and cervical disease progression.⁴⁴,⁴⁵ Although direct research examining blood sugar management and HPV clearance remains limited, maintaining healthy glucose regulation supports many of the biological systems involved in immune defense. What Causes Blood Sugar Spikes? Many factors influence blood sugar regulation, including: Highly refined carbohydrates Sugar-sweetened beverages Poor sleep Chronic stress Physical inactivity Certain hormonal conditions, including polycystic ovary syndrome (PCOS) Genetics⁴¹,⁴⁶ Repeated blood sugar spikes can contribute to higher insulin levels over time, increasing the risk of insulin resistance and metabolic dysfunction. Fortunately, small lifestyle habits can make a meaningful difference. Simple strategies include: Eating protein with every meal Including healthy fats and fiber to slow glucose absorption Choosing minimally processed carbohydrates more often Going for a short walk after meals Prioritizing resistance training and regular physical activity Getting adequate sleep each night. These habits support healthy glucose metabolism while also benefiting cardiovascular health, hormone balance, and immune function. 5. Consider Your Support System An HPV diagnosis can feel incredibly isolating. Although HPV is one of the most common viral infections worldwide, many women experience fear, anxiety, embarrassment, or shame after receiving their diagnosis.²¹,⁴⁷ Research has shown that abnormal cervical screening results can negatively affect emotional well-being, intimate relationships, self-esteem, and overall quality of life.⁴⁸,⁴⁹ One reason HPV can feel so overwhelming is the stigma surrounding sexually transmitted infections. Despite the fact that approximately 80% of sexually active people will contract HPV at some point in their lives, many women blame themselves or feel as though they have done something wrong.¹,²¹ The truth is that HPV is incredibly common, and having HPV is not a reflection of your worth, your choices, your relationships, or your future. Letting go of shame can be an important part of your healing journey. While self-compassion cannot clear HPV, cultivating a kinder relationship with yourself may help reduce stress and support emotional well-being. Research has shown that practices such as mindfulness meditation, guided imagery, and self-compassion can reduce perceived stress, improve coping, and enhance quality of life in individuals living with chronic health conditions.⁵⁰⁻⁵² A Simple Mindfulness Practice If you're feeling overwhelmed by your diagnosis, consider taking a few quiet moments each day to reconnect with your body. Place your hands gently over your lower abdomen or womb space, take several slow, deep breaths, and ask yourself: What is being asked of me to heal? Where am I feeling blocked? What patterns or beliefs am I holding onto that are no longer serving me? What do I need most right now to support myself? Rather than judging whatever comes up, simply notice your thoughts with curiosity and compassion. Many people also find it helpful to replace fearful thoughts with positive affirmations. While affirmations are not a treatment for HPV, they can be a meaningful tool for cultivating resilience and self-kindness. One affirmation you might try is: "I lovingly allow joy to flow freely in my life. I love and respect myself." Or create one that feels authentic to you, such as: I trust my body and its ability to heal and protect me. I am more than this diagnosis. I choose compassion over fear. Every day, I am supporting my health with small, meaningful actions. Build Your Circle of Support Healing is not something you have to navigate alone. Your support system might include: Your healthcare provider A registered dietitian or naturopathic doctor A mental health professional Trusted family members Close friends Support groups Online communities that share evidence-based education and encouragement Studies consistently show that strong social support is associated with lower psychological distress, improved coping, and better health outcomes across many chronic conditions.⁵⁰,⁵¹ While support alone cannot clear HPV, caring for your emotional health is an important part of caring for your whole self. At Wellex®, we believe every woman deserves evidence-based information, compassionate care, and practical tools to help her feel empowered after an HPV diagnosis. Continue following your healthcare provider's recommendations for cervical screening and treatment while also supporting your health through nourishing food, restorative sleep, stress management, movement, and meaningful connection. Healing is rarely about one single intervention. More often, it is the result of many small, consistent choices that support your body, your mind, and your well-being over time. Putting It All Together Receiving an HPV diagnosis can feel overwhelming, but it is important to remember that HPV is extremely common and, in most cases, the immune system successfully clears the virus over time.¹,² While there is no supplement, diet, or lifestyle intervention that can cure HPV, a growing body of research suggests that supporting immune function and overall health may help create an environment that favors viral clearance and healthy cervical tissue.⁴,⁵ Rather than focusing on a single solution, consider building a strong foundation through nutrition, movement, sleep, stress management, metabolic health, and regular medical follow-up. These habits benefit not only cervical health but your overall well-being. Foods That May Help Support Cervical Health Diet is one of the most modifiable lifestyle factors influencing immune function and inflammation. Dietary patterns rich in fruits, vegetables, legumes, whole grains, nuts, seeds, and healthy fats have consistently been associated with better overall health and reduced chronic disease risk.⁵²,⁵³ Several nutrients and plant compounds have also been investigated specifically in relation to HPV persistence and cervical dysplasia. Folate Folate plays an essential role in DNA synthesis, DNA repair, and normal cell division. Low folate intake has been associated with an increased risk of HPV persistence and cervical dysplasia in several observational studies, although intervention studies remain limited.¹³,¹⁴,⁵⁴ Good dietary sources include: Dark leafy greens Lentils Chickpeas Asparagus Avocados Citrus fruits Carotenoids Carotenoids are antioxidant pigments found in colourful fruits and vegetables. Higher blood concentrations of carotenoids have been associated with a lower likelihood of persistent HPV infection and cervical abnormalities in several epidemiological studies.¹⁶⁻²⁰ Foods rich in carotenoids include: Carrots Sweet potatoes Spinach Kale Bell peppers Pumpkin Lycopene Lycopene is a carotenoid concentrated in tomatoes and watermelon. Laboratory and observational research suggests lycopene may help reduce oxidative stress and support healthy cervical cells, although additional clinical research is needed before conclusions can be made regarding HPV outcomes.⁵⁵,⁵⁶ Foods rich in lycopene include: Cooked tomatoes Tomato paste Tomato sauce Watermelon Pink grapefruit Interestingly, cooked tomato products provide more bioavailable lycopene than raw tomatoes.⁵⁷ Green Tea Green tea contains polyphenols known as catechins, particularly epigallocatechin gallate (EGCG), which possess antioxidant and anti-inflammatory properties. Laboratory and small clinical studies have investigated green tea extracts for cervical dysplasia and HPV-related lesions, with some showing encouraging results. However, larger randomized controlled trials are still needed.⁵⁸⁻⁶¹ Enjoying unsweetened green tea can be part of an overall healthy dietary pattern, although it should not replace standard medical care. Supplements That Have Been Studied Research into nutritional supplementation for HPV continues to evolve. While no supplement has been proven to eliminate HPV, several nutrients have been investigated for their role in supporting immune function and cervical health. Some of the most commonly studied include: Folate Vitamin C Vitamin E Vitamin A Selenium Zinc Vitamin D Green tea catechins (EGCG) Many of these nutrients help support antioxidant defenses, immune function, and normal cellular repair mechanisms.¹⁰,¹²,¹⁸,⁵⁴ At Wellex®, we've also formulated our HPV support products with evidence-informed ingredients selected to help support healthy immune function and antioxidant status. While supplements should never replace routine cervical screening or treatment recommended by your healthcare provider, they can be considered as part of a comprehensive wellness plan. Always discuss supplementation with your healthcare practitioner, particularly if you are pregnant, breastfeeding, or taking prescription medications. Frequently Asked Questions Can HPV go away on its own? Yes. Most HPV infections are transient and are naturally cleared by the immune system within one to two years, particularly in younger individuals.¹,² Does having HPV mean I will get cervical cancer? No. Although persistent infection with high-risk HPV types is necessary for the development of cervical cancer, only a small proportion of HPV infections progress to cancer. Regular cervical screening allows abnormal cells to be detected and treated long before cancer develops.²,³ Can lifestyle changes cure HPV? No. There is currently no evidence that any diet, supplement, or lifestyle intervention can cure HPV. However, maintaining a healthy lifestyle supports normal immune function and may influence factors associated with HPV persistence.⁴,⁵,⁵² Should I still attend my follow-up appointments? Absolutely. Lifestyle strategies should complement, not replace, routine cervical screening, HPV testing, colposcopy, or treatment recommended by your healthcare provider.³ The Bottom Line Receiving an HPV diagnosis can be frightening, but it is not a diagnosis you have to face alone. Most HPV infections resolve naturally, and regular cervical screening has dramatically reduced cervical cancer rates by identifying abnormal cells before they become cancerous.¹,³ At the same time, emerging research suggests that immune health, nutritional status, oxidative stress, inflammation, metabolic health, and the vaginal microbiome may all influence how the body responds to HPV.⁴⁻⁶,²¹,³⁰ Although no single intervention guarantees viral clearance, consistently supporting your health through balanced nutrition, regular physical activity, restorative sleep, stress management, and appropriate medical care gives your body the best opportunity to function optimally. At Wellex®, we believe every woman deserves evidence-based information that empowers her to take an active role in her health journey. If you've recently been diagnosed with HPV, know that you are not alone, and that there are meaningful steps you can take to support your overall health while working closely with your healthcare provider. References World Health Organization. Human papillomavirus (HPV) and cervical cancer. Updated 2024. Schiffman M, Doorbar J, Wentzensen N, et al. Carcinogenic human papillomavirus infection. Nat Rev Dis Primers. 2016;2:16086. Perkins RB, Guido RS, Castle PE, et al. 2019 ASCCP risk-based management consensus guidelines for abnormal cervical cancer screening tests and cancer precursors. J Low Genit Tract Dis. 2020;24(2):102-131. Stanley M. Immune responses to human papillomavirus. Vaccine. 2006;24(Suppl 1):S16-S22. Georgakilas AG, et al. Oxidative stress and HPV-mediated carcinogenesis. Cancer Lett. 2022;531:1-12. Łaniewski P, et al. The vaginal microbiota, HPV, and cervical dysplasia. Nat Rev Urol. 2020;17(9):551-565. Brotman RM. Vaginal microbiome and human health. Nat Rev Microbiol. 2011;9(10):675-687. Cohen PA, Jhingran A, Oaknin A, Denny L. Cervical cancer. Lancet. 2019;393(10167):169-182. Doorbar J, et al. The biology and life cycle of human papillomaviruses. Vaccine. 2012;30(Suppl 5):F55-F70. Gombart AF, Pierre A, Maggini S. A review of micronutrients and the immune system. Nutrients. 2020;12(1):236. Calder PC. Nutrition, immunity and COVID-19. BMJ Nutr Prev Health. 2020;3:74-92. Maggini S, Pierre A, Calder PC. Immune function and micronutrients. Nutrients. 2018;10(11):1531. Tomita LY, Longatto-Filho A, Costa MC, et al. Diet and serum micronutrients in relation to cervical neoplasia. Nutr Cancer. 2010;62(6):857-866. Goodman MT, et al. Diet, micronutrients and cervical dysplasia. Cancer Epidemiol Biomarkers Prev. 1998;7:537-544. García-Closas R, et al. Nutritional factors and cervical cancer risk. Cancer Causes Control. 2005;16:1029-1039. Giuliano AR, et al. Plasma carotenoids and HPV persistence. Cancer Epidemiol Biomarkers Prev. 2002;11:876-884. Sedjo RL, et al. Micronutrients and cervical dysplasia. Am J Clin Nutr. 2002;75(6):1077-1084. Siegel EM, et al. Dietary carotenoids and cervical neoplasia. Int J Cancer. 2010;126(2):448-457. Myung SK, et al. Carotenoids and cervical neoplasia: systematic review and meta-analysis. Nutr Cancer. 2011;63(8):1196-1203. Barchitta M, et al. Nutrition and HPV persistence: systematic review. Nutrients. 2018;10(4):469. De Marco F. Oxidative stress and HPV infection. Viruses. 2013;5(2):708-731. Moody CA, Laimins LA. Human papillomavirus oncoproteins: pathways to transformation. Nat Rev Cancer. 2010;10(8):550-560. Cruz-Gregorio A, et al. Oxidative stress in HPV infection and cervical cancer. Viruses. 2018;10(11):567. Mittal S, Banks L. Molecular mechanisms underlying HPV-associated cancers. Nat Rev Cancer. 2017;17(10):641-654. Hoppe-Seyler K, Bossler F, Braun JA, et al. The HPV E6/E7 oncogenes. Int J Cancer. 2018;143(10):2363-2371. International Agency for Research on Cancer. IARC Handbooks of Cancer Prevention. Cervix Cancer Screening. Vol. 18. IARC; 2022. Ma B, Forney LJ, Ravel J. Vaginal microbiome: rethinking health and disease. Annu Rev Microbiol. 2012;66:371-389. Ravel J, Gajer P, Abdo Z, et al. Vaginal microbiome of reproductive-age women. Proc Natl Acad Sci U S A. 2011;108(Suppl 1):4680-4687. Petrova MI, Reid G, Vaneechoutte M, Lebeer S. Lactobacillus species as biomarkers and agents that promote vaginal health. Front Physiol. 2017;8:677. Łaniewski P, Ilhan ZE, Herbst-Kralovetz MM. The microbiome and gynecologic cancer. Nat Rev Urol. 2020;17(9):551-569. Mitra A, MacIntyre DA, Lee YS, et al. Cervical intraepithelial neoplasia disease progression is associated with vaginal microbiome changes. Sci Rep. 2015;5:16865. Usyk M, Zolnik CP, Castle PE, et al. Cervicovaginal microbiome and natural history of HPV. Nat Commun. 2020;11:6033. Brusselaers N, Shrestha S, van de Wijgert J, Verstraelen H. Vaginal dysbiosis and HPV persistence: a systematic review and meta-analysis. BMC Infect Dis. 2019;19:9. Kyrgiou M, Mitra A, Moscicki AB. Does the vaginal microbiota play a role in cervical carcinogenesis? Lancet Oncol. 2017;18(1):104-105. Glaser R, Kiecolt-Glaser JK. Stress-induced immune dysfunction. Nat Rev Immunol. 2005;5(3):243-251. Bailey MT. Psychological stress, immunity and the microbiome. Brain Behav Immun. 2014;40:1-8. Norenhag J, Du J, Olovsson M, et al. The vaginal microbiota and gynecological health. Front Cell Infect Microbiol. 2020;10:554. Slavich GM. Psychoneuroimmunology of stress and health. Annu Rev Clin Psychol. 2020;16:421-447. Brotman RM. Vaginal microbiome and sexually transmitted infections. Clin Microbiol Rev. 2011;24(2):235-250. Williams AB, et al. Psychosocial stress and cervical HPV persistence. J Behav Med. 2021;44(4):540-551. Hodgson K, Morris J, Bridson T, et al. Immunological mechanisms linking obesity, diabetes and infection. Front Endocrinol (Lausanne). 2015;6:109. Berbudi A, Rahmadika N, Tjahjadi AI, Ruslami R. Type 2 diabetes and immune dysfunction. Acta Med Indones. 2020;52(4):382-389. Pearson-Stuttard J, Blundell S, Harris T, et al. Diabetes and infection. Lancet Diabetes Endocrinol. 2016;4(2):148-158. Reusser NM, Downing C, Guidry J, Tyring SK. Human papillomavirus carcinogenesis and host metabolic factors. Curr Probl Cancer. 2015;39(4):228-236. De Marco F. Oxidative stress and HPV infection. Viruses. 2013;5(2):708-731. American Diabetes Association Professional Practice Committee. Standards of Care in Diabetes—2025. Diabetes Care. 2025;48(Suppl 1):S1-S350. World Health Organization. Human papillomavirus (HPV) and cervical cancer. Updated 2024. McCaffery K, Waller J, Nazroo J, Wardle J. Psychological impact of abnormal cervical screening results. Br J Cancer. 2004;91(5):935-941. Korfage IJ, Essink-Bot ML, Westenberg SM, et al. Anxiety and quality of life after abnormal cervical screening. BJOG. 2012;119(9):1103-1112. Uchino BN. Social support and health: a review of physiological processes. J Behav Med. 2006;29(4):377-387. Holt-Lunstad J, Smith TB, Layton JB. Social relationships and mortality risk: a meta-analytic review. PLoS Med. 2010;7(7):e1000316. Calder PC. Nutrition, immunity and inflammation: from basic science to clinical application. Nutrients. 2020;12(4):1113. Schwingshackl L, Bogensberger B, Hoffmann G. Diet quality as assessed by the Healthy Eating Index and chronic disease risk: a systematic review and meta-analysis. Nutrients. 2018;10(11):1803. Butterworth CE Jr, Hatch KD, Gore H, et al. Improvement in cervical dysplasia associated with folic acid therapy in women with folate deficiency. Am J Clin Nutr. 1992;55(2):425-429. Barchitta M, Maugeri A, Quattrocchi A, et al. The association between dietary antioxidant intake and human papillomavirus persistence. Nutrients. 2018;10(4):469. Tang FY, Cho HJ, Pai MH, Chen YH. Concomitant supplementation of lycopene and eicosapentaenoic acid inhibits oxidative stress and inflammatory responses. J Nutr Biochem. 2009;20(3):163-169. Story EN, Kopec RE, Schwartz SJ, Harris GK. An update on the health effects of tomato lycopene. Annu Rev Food Sci Technol. 2010;1:189-210. Ahn WS, Yoo J, Huh SW, et al. Protective effects of green tea extracts (polyphenon E and EGCG) on cervical lesions. Eur J Cancer Prev. 2003;12(5):383-390. Bettuzzi S, Brausi M, Rizzi F, et al. Chemoprevention of human papillomavirus-related lesions by green tea catechins. Eur Urol. 2006;50(3):483-490. Yang CS, Wang H. Cancer preventive activities of tea catechins. Molecules. 2016;21(12):1679. Yin Z, Xu Y, Luo Y, et al. Green tea polyphenols and cervical neoplasia: a systematic review. Medicine (Baltimore). 2020;99(18):e19749. Ahn WS, Yoo J, Huh SW, et al. Protective effects of green tea extracts (Polyphenon E and EGCG) on cervical lesions. Eur J Cancer Prev. 2003;12(5):383-390. Bettuzzi S, Brausi M, Rizzi F, et al. Chemoprevention of human papillomavirus-related lesions by green tea catechins. Eur Urol. 2006;50(3):483-490. Caire de Castro AC, et al. Complementary and integrative therapies for HPV-related cervical lesions: a systematic review. Complement Ther Med. 2022;68:102840. Arbyn M, et al. Topical and local treatments for cervical intraepithelial neoplasia: systematic review. Cochrane Database Syst Rev. 2022;(9):CD010126. Chisari CG, et al. Emerging local therapies for HPV-associated cervical lesions. Cancers (Basel). 2023;15(3):857.
Jul 10, 2026
18 min read
Cognizin®: The Science Behind One of the Most Researched Brain Health Ingredients

Cognizin®: The Science Behind One of the Most Researched Brain Health Ingredients

Kadia Bielecki
Can a Brain Nutrient Help Support Memory, Focus, and Mental Performance? Whether you're juggling work deadlines, studying for exams, managing a busy family schedule, or simply looking to support healthy aging, maintaining cognitive performance has become a priority for many people. While lifestyle habits such as quality sleep, exercise, stress management, and a nutrient-dense diet remain the foundation of brain health, certain nutritional ingredients have also been studied for their ability to support cognitive function. One ingredient receiving significant scientific attention is Cognizin®, a patented form of citicoline (CDP-choline). Backed by decades of research, Cognizin has been investigated for its effects on memory, attention, mental energy, and overall brain health.¹⁻³ In this article, we'll explore what Cognizin is, how it works, what the research says, and who may benefit from adding it to a comprehensive brain health strategy. What Is Cognizin®? Cognizin® is a branded, highly purified form of citicoline, also known as cytidine diphosphate-choline (CDP-choline). Citicoline is a naturally occurring compound found in every cell of the body. It serves as an important precursor for phosphatidylcholine, one of the major phospholipids that make up brain cell membranes.¹ When consumed orally, citicoline is broken down into cytidine and choline, absorbed, and then reassembled in the brain where it contributes to multiple neurological processes.¹ Unlike many brain supplements that rely primarily on traditional use, citicoline has been extensively studied in both healthy individuals and clinical populations for cognitive performance and neurological health.¹⁻⁴ How Does Cognizin Work? Brain function depends on healthy neurons communicating efficiently with one another. Citicoline supports several biological pathways involved in maintaining optimal cognitive performance. 1. Supports Acetylcholine Production Choline is required to produce acetylcholine, one of the brain's most important neurotransmitters. Acetylcholine plays key roles in: Learning Memory formation Attention Information processing Muscle control Adequate choline availability helps support efficient neurotransmitter production and healthy cognitive function.¹ 2. Helps Maintain Healthy Brain Cell Membranes Every neuron is surrounded by a phospholipid membrane. Citicoline provides building blocks used to synthesize phosphatidylcholine, helping maintain membrane integrity, cellular communication, and normal neuronal function.¹⁻³ 3. Supports Brain Energy Metabolism The brain consumes approximately 20% of the body's energy despite representing only about 2% of total body weight. Research suggests citicoline may help support mitochondrial function and healthy brain energy metabolism, allowing neurons to function more efficiently during demanding cognitive tasks.¹ 4. Supports Healthy Neurotransmitter Activity Research indicates citicoline may influence several neurotransmitter systems, including: Dopamine Acetylcholine Norepinephrine These neurotransmitters influence motivation, attention, executive function, and mental performance.¹,³ What Does the Research Say? Cognizin is among the most extensively researched branded citicoline ingredients available. While research continues to evolve, several randomized controlled trials have demonstrated encouraging results. Cognizin May Support Memory One randomized, double-blind, placebo-controlled clinical trial evaluated 100 healthy adults aged 50 to 85 years with age-associated memory impairment. Participants who supplemented with 500 mg of Cognizin daily for 12 weeks demonstrated significant improvements in: Episodic memory Composite memory scores Overall memory performance compared with placebo.² These findings suggest that regular supplementation may help support memory as part of healthy aging. Cognizin May Support Attention Attention naturally fluctuates throughout the day and can be affected by stress, sleep quality, aging, and workload. Clinical research has shown that Cognizin supplementation may improve sustained attention and attentional performance in healthy adults, particularly among individuals with lower baseline attention.³ Improved attention may translate into better concentration during mentally demanding tasks. Cognizin May Support Mental Energy Unlike stimulants that temporarily increase alertness, citicoline works differently. Rather than forcing the brain into a heightened state, research suggests it supports normal cellular energy production and healthy neuronal function, potentially contributing to sustained mental performance throughout the day.¹ Many individuals describe this as experiencing clearer thinking rather than feeling overstimulated. Cognizin May Support Healthy Aging Normal aging is associated with gradual changes in memory, processing speed, and executive function. Maintaining healthy phospholipid metabolism, neurotransmitter production, and neuronal membrane integrity becomes increasingly important over time. Clinical research suggests citicoline may help support several of these age-related neurological processes.¹,² Who Might Benefit from Cognizin? Although research is ongoing, Cognizin may be a valuable addition for individuals looking to support: Memory Focus Attention Mental clarity Cognitive performance during aging Brain health as part of a healthy lifestyle It is important to remember that supplements work best when combined with foundational lifestyle habits such as regular exercise, restorative sleep, stress management, and balanced nutrition. Is Cognizin Safe? Citicoline has been studied extensively and is generally well tolerated when used at recommended doses. Clinical studies have reported a favorable safety profile with few adverse effects. Reported side effects are uncommon and generally mild, when they occur, and may include digestive discomfort or headache.¹,⁴ As with any dietary supplement, individuals who are pregnant, breastfeeding, taking prescription medications, or living with medical conditions should consult a qualified healthcare practitioner before starting supplementation. How Much Cognizin Is Used in Research? Most human clinical studies evaluating Cognizin have used 250 to 500 mg daily, with many of the memory studies using 500 mg per day over approximately 12 weeks.²,³ The appropriate dosage depends on an individual's health status, goals, and guidance from their healthcare provider. Why Quality Matters Not all citicoline supplements are manufactured equally. Cognizin is a patented ingredient that undergoes rigorous quality testing and has been the subject of numerous published clinical trials. Choosing clinically studied ingredients provides greater confidence that the supplement contains the form and dosage evaluated in research. The Bottom Line Brain health is influenced by nutrition, movement, sleep, stress, and lifelong learning. Supplements are not a substitute for these foundational habits, but evidence suggests that clinically studied ingredients like Cognizin may offer additional support. Current research indicates that Cognizin may help support memory, attention, mental performance, and healthy cognitive aging by providing key nutrients involved in neurotransmitter production, brain cell membrane integrity, and energy metabolism. While additional long-term research continues, the existing evidence supports its role as one of the most well-studied nutritional ingredients for cognitive health. If you're looking to proactively support your brain health, Cognizin may be a science-backed option worth discussing with your healthcare practitioner. References Secades JJ. Citicoline: pharmacological and clinical review, 2022 update. Rev Neurol. 2022;75(S05):S1-S89. Nakazaki E, Mah E, Sanoshy KD, et al. Citicoline and memory function in healthy older adults: a randomized, double-blind, placebo-controlled clinical trial. J Nutr. 2021;151(7):2153-2160. McGlade E, Locatelli A, Hardy J, et al. Citicoline supplementation improves attentional performance in healthy adults. Published clinical evidence summarized for Cognizin® and associated peer reviewed studies. Grieb P. Application of citicoline in neurological disorders: a systematic review. Nutrients. 2020;12(10):3113.
Jul 08, 2026
5 min read
Why You're Waking Up at 3 AM Every Night: The Hormone, Blood Sugar, and Stress Connection

Why You're Waking Up at 3 AM Every Night: The Hormone, Blood Sugar, and Stress Connection

Kadia Bielecki
You fall asleep without much trouble, only to find yourself staring at the ceiling at 3 AM. Again. Maybe you drift back to sleep after an hour, or maybe you're awake until your alarm goes off. If this sounds familiar, you're not alone. Waking during the night is one of the most common sleep complaints among women, particularly during periods of increased stress, hormonal changes, and midlife.¹ While occasional nighttime awakenings are completely normal, consistently waking around the same time every night may signal that something is disrupting your body's natural sleep processes. The good news? In many cases, the cause isn't random. Factors such as blood sugar regulation, cortisol (your primary stress hormone), reproductive hormones, and sleep quality all work together to influence whether you stay asleep throughout the night. Here's what science says. Is It Normal to Wake Up During the Night? Yes. Healthy adults naturally cycle through different stages of sleep every 90 to 120 minutes, briefly entering lighter stages of sleep several times each night.² Many people wake for only a few seconds and never remember it. Problems arise when these awakenings become prolonged, frequent, or make it difficult to fall back asleep. This is known as sleep maintenance insomnia, and it affects women more often than men.¹ Several biological factors contribute to this increased risk, including hormonal fluctuations, higher rates of anxiety, and changing sleep needs across the lifespan.¹ Blood Sugar May Be Waking You Up One overlooked contributor to nighttime waking is blood glucose regulation. While you sleep, your body continues using glucose for energy. If blood sugar falls too low overnight, the brain responds by activating the sympathetic nervous system and releasing hormones such as glucagon, adrenaline (epinephrine), and cortisol to restore blood glucose levels.³ These stress hormones increase alertness, raise heart rate, and stimulate glucose production by the liver. Unfortunately, they can also wake you from sleep.³ People may notice: Waking suddenly with a racing heart Feeling hungry during the night Night sweats Difficulty falling back asleep Feeling "wide awake" despite being exhausted Blood sugar instability may be more common in individuals with insulin resistance, prediabetes, diabetes, polycystic ovary syndrome (PCOS), or those eating very little during the day.⁴ Cortisol: Your Body's Natural Alarm Clock Cortisol often gets a bad reputation, but it's essential for healthy sleep-wake cycles. Under normal circumstances, cortisol follows a circadian rhythm. Levels are lowest during the first half of the night and begin rising several hours before waking, helping prepare your body for the day ahead.⁵ Chronic stress can disrupt this pattern. Psychological stress, overtraining, poor sleep, illness, and ongoing emotional strain may increase nighttime cortisol levels, making it easier to wake during the early morning hours.⁶ Many people notice that when they wake, their mind immediately starts racing through tomorrow's to-do list or replaying conversations from the day before. This isn't simply "overthinking." It reflects activation of the body's stress response, making it harder for the brain to transition back into restorative sleep. Women's Hormones Play a Bigger Role Than Many Realize Hormonal fluctuations throughout a woman's life can significantly influence sleep quality. During the Menstrual Cycle Progesterone has mild sleep-promoting effects, while estrogen helps regulate body temperature, mood, and neurotransmitters involved in sleep.⁷ As both hormones decline during the late luteal phase before menstruation, many women experience: More nighttime awakenings Lighter sleep Increased body temperature Mood changes Restless sleep Women with premenstrual syndrome (PMS) or premenstrual dysphoric disorder (PMDD) often experience even greater sleep disruption during this phase.⁸ During Perimenopause and Menopause Sleep disturbances become even more common during perimenopause. Declining estrogen affects the brain's temperature regulation centre, contributing to hot flashes and night sweats that interrupt sleep.⁹ Estrogen also influences serotonin and other neurotransmitters involved in maintaining healthy sleep patterns.⁹ Research suggests that between 40% and 60% of women experience sleep problems during the menopausal transition.¹⁰ Stress Doesn't Just Affect Your Mind Stress affects nearly every physiological system involved in sleep. Persistent activation of the hypothalamic-pituitary-adrenal (HPA) axis increases physiological arousal, making it more difficult to transition into deep, restorative sleep.⁶ People experiencing chronic stress often spend less time in slow-wave sleep, the stage responsible for physical recovery, immune function, and memory consolidation.² Over time, poor sleep and chronic stress can reinforce one another, creating a cycle that's difficult to break without addressing both. Other Factors That May Be Contributing Although hormones and stress are common contributors, other factors can also lead to repeated nighttime awakenings, including: Obstructive sleep apnea¹¹ Restless legs syndrome¹² Alcohol consumption before bed² Caffeine consumed later in the day² Certain medications¹ Depression and anxiety disorders¹ Chronic pain¹ If nighttime waking is accompanied by loud snoring, gasping for air, frequent urination, or excessive daytime fatigue, it's worth discussing these symptoms with a healthcare provider. How to Support Better Sleep Naturally The best approach depends on the underlying cause, but evidence supports several lifestyle strategies that may improve sleep quality. Prioritize Balanced Evening Nutrition Eating regular meals throughout the day and including a combination of protein, healthy fats, fibre, and complex carbohydrates at dinner may help support more stable overnight blood glucose levels.⁴ Pairing carbohydrates with protein and healthy fats slows digestion and glucose absorption, helping reduce large fluctuations in blood sugar that can trigger the release of adrenaline and cortisol during the night.¹⁴ Foods such as Greek yogurt with berries, hummus and vegetables, or whole-grain toast with nut butter can also make balanced evening snacks if you find yourself going to bed hungry. In addition to a nutrient-rich diet, several vitamins, minerals, and botanical ingredients have been studied for their role in supporting healthy glucose metabolism. Magnesium plays an important role in insulin signalling and glucose regulation, while chromium helps support normal insulin function.¹⁵˒¹⁶ Plant compounds such as berberine, cinnamon bark extract, and alpha-lipoic acid have also demonstrated benefits for insulin sensitivity and blood sugar regulation in individuals with impaired glucose metabolism.¹⁷⁻¹⁹ While these nutrients are not a substitute for a balanced diet, regular exercise, or medical care, they may be valuable tools for individuals looking to support healthy blood sugar balance as part of a comprehensive wellness plan. If you're considering supplementation, speak with your healthcare provider or a qualified healthcare practitioner to determine what's appropriate for your individual needs. Build a Consistent Sleep Schedule Going to bed and waking up at similar times every day helps reinforce the body's circadian rhythm and supports healthy cortisol timing.² Aim for 7–9 hours of sleep each night, establish a relaxing bedtime routine, avoid screens for 1–2 hours before bed, limit caffeine in the afternoon and evening, and keep your bedroom cool, dark, and quiet to promote restorative sleep.² Manage Stress Before Bed Mindfulness meditation, diaphragmatic breathing, cognitive behavioural therapy for insomnia (CBT-I), and gentle relaxation exercises have all been shown to improve sleep quality.¹³ Limit Late-Night Alcohol and Caffeine Although alcohol may initially promote drowsiness, it disrupts sleep later in the night and reduces overall sleep quality.² Caffeine consumed within six to eight hours of bedtime may also interfere with sleep maintenance.² Seek Support for Hormonal Symptoms If nighttime waking consistently worsens around your menstrual cycle or during perimenopause, working with a healthcare practitioner may help identify personalized strategies, including lifestyle interventions or medical therapies when appropriate.⁹ The Bottom Line Waking up at 3 AM isn't always a mystery. In many women, repeated nighttime awakenings reflect the combined effects of blood sugar regulation, stress hormones, and changing reproductive hormones. While occasional waking is part of normal sleep, frequent or prolonged awakenings deserve attention, especially when they affect energy, mood, or daily functioning. Understanding what's happening beneath the surface is the first step toward improving your sleep. With the right combination of nutrition, stress management, healthy sleep habits, and individualized care, many women can reduce nighttime awakenings and wake feeling more rested. References Riemann D, Krone LB, Wulff K, Nissen C. Sleep, insomnia, and mental health. Lancet. 2020;396(10265):2008-2020. doi:10.1016/S0140-6736(20)31536-3 Medic G, Wille M, Hemels MEH. Short- and long-term health consequences of sleep disruption. Nat Sci Sleep. 2017;9:151-161. doi:10.2147/NSS.S134864 Cryer PE. Mechanisms of hypoglycemia-associated autonomic failure and implications for diabetes. N Engl J Med. 2013;369(4):362-372. doi:10.1056/NEJMra1215228 American Diabetes Association Professional Practice Committee. Classification and diagnosis of diabetes: Standards of Care in Diabetes—2025. Diabetes Care. 2025;48(Suppl 1):S20-S43. Weitzman ED, Zimmerman JC, Czeisler CA, Ronda JM. Cortisol secretion and circadian rhythm in humans. J Clin Endocrinol Metab. 1983;56(2):351-358. Buckley TM, Schatzberg AF. On the interactions of the hypothalamic-pituitary-adrenal axis and sleep. Arch Gen Psychiatry. 2005;62(10):1087-1097. doi:10.1001/archpsyc.62.10.1087 Baker FC, Lee KA. Menstrual cycle effects on sleep. Sleep Med Clin. 2018;13(3):283-294. doi:10.1016/j.jsmc.2018.04.002 Shechter A, Varin F, Boivin DB. Sleep and the menstrual cycle. Sleep Med Clin. 2010;5(2):227-236. Baker FC, de Zambotti M, Colrain IM, Bei B. Sleep problems during the menopausal transition. Sleep. 2018;41(8):zsy115. doi:10.1093/sleep/zsy115 Xu Q, Lang CP. Examining the relationship between subjective sleep disturbance and menopause. Menopause. 2014;21(12):1301-1318. Jordan AS, McSharry DG, Malhotra A. Adult obstructive sleep apnoea. Lancet. 2014;383(9918):736-747. Allen RP, Picchietti DL, Garcia-Borreguero D, et al. Restless legs syndrome diagnostic criteria. Sleep Med. 2014;15(8):860-873. Trauer JM, Qian MY, Doyle JS, Rajaratnam SMW, Cunnington D. Cognitive behavioural therapy for chronic insomnia: a systematic review and meta-analysis. Ann Intern Med. 2015;163(3):191-204. Evert AB, Dennison M, Gardner CD, et al. Nutrition therapy for adults with diabetes or prediabetes: A consensus report. Diabetes Care. 2019;42(5):731-754. doi:10.2337/dci19-0014. Veronese N, Watutantrige-Fernando S, Luchini C, et al. Effect of magnesium supplementation on glucose metabolism in people with or at risk of diabetes: A systematic review and meta-analysis of double-blind randomized controlled trials. Eur J Clin Nutr. 2016;70(12):1354-1359. doi:10.1038/ejcn.2016.154. Balk EM, Tatsioni A, Lichtenstein AH, Lau J, Pittas AG. Effect of chromium supplementation on glucose metabolism and lipids: A systematic review of randomized controlled trials. Diabetes Care. 2007;30(8):2154-2163. doi:10.2337/dc06-0996. Yin J, Xing H, Ye J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism. 2008;57(5):712-717. doi:10.1016/j.metabol.2008.01.013. Allen RW, Schwartzman E, Baker WL, Coleman CI, Phung OJ. Cinnamon use in type 2 diabetes: An updated systematic review and meta-analysis. Ann Fam Med. 2013;11(5):452-459. doi:10.1370/afm.1517. Akbari M, Ostadmohammadi V, Tabrizi R, et al. The effects of alpha-lipoic acid supplementation on glucose control and oxidative stress: A systematic review and meta-analysis of randomized controlled trials. Diometabolic Syndrome. 2019;13(3):905-912.
Jul 06, 2026
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