Creatine for Brain Health: Benefits, Uses, and What the Research Says

Creatine Is Not Just for Muscle

Creatine is often known as a fitness supplement, but it also plays an important role in brain energy metabolism.¹

The brain has high energy needs, and creatine helps support the recycling of adenosine triphosphate, or ATP, which cells use for energy.²

Because the brain relies on consistent energy availability, researchers are studying creatine for memory, attention, mental fatigue, mood, aging, and sleep deprivation.¹,²

The current evidence is promising, but not definitive.¹

For most healthy adults, creatine should be viewed as a supportive nutrient, not a cure or stand-alone treatment for cognitive or mental health concerns.¹,³

What Is Creatine?

Creatine is a naturally occurring compound made from amino acids and stored mainly in muscle, with smaller amounts found in the brain.²

Creatine can also be obtained through foods such as meat and fish, and through supplemental creatine monohydrate.²,⁴

Inside cells, creatine helps replenish ATP by participating in the creatine kinase and phosphocreatine energy system.²

This energy-buffering system is especially relevant in tissues with high or fluctuating energy demands, including skeletal muscle and the brain.²

How Might Creatine Support Brain Health?

Creatine may support brain health by helping maintain cellular energy availability during periods of increased cognitive or metabolic demand.¹,²

Research suggests that creatine supplementation can increase brain creatine stores, although changes in brain creatine may depend on dose, duration, baseline status, age, sex, diet, and study methods.²

Creatine appears most likely to help cognition when the brain is under stress, such as during sleep deprivation, aging, or low creatine availability.¹,²,⁵

A naturopathic lens would frame creatine as part of a broader brain-health foundation that also includes sleep, protein intake, blood sugar balance, exercise, stress regulation, and nutrient sufficiency.¹,²

Creatine and Memory

A 2024 systematic review and meta-analysis of randomized controlled trials found that creatine supplementation had a significant positive effect on memory function in adults.¹

The same review found that creatine did not improve every cognitive outcome, which suggests that its benefits may be domain-specific rather than global.¹ However, benefits were not observed across all cognitive domains, suggesting that creatine’s effects may be more targeted rather than broadly enhancing cognition.¹

In older adults, a 2025 systematic review found that most included studies reported a positive relationship between creatine and cognition, particularly in memory and attention.That said, the overall body of evidence is still developing, and larger, high-quality studies are needed to better understand the extent of these benefits.⁶

Creatine may be a helpful tool for supporting memory and cognitive health, but it should be viewed as one component of a broader brain health strategy rather than a standalone solution.¹,⁶

Creatine, Attention, and Processing Speed

Emerging research suggests that creatine may also support aspects of attention and processing speed. A 2024 systematic review and meta-analysis found that creatine supplementation improved attention time and processing speed time in adults, indicating that participants were able to complete certain cognitive tasks more efficiently.¹

These findings are particularly interesting because attention and processing speed play important roles in everyday cognitive performance, influencing how quickly we absorb information, respond to stimuli, and complete mentally demanding tasks.¹

Additional evidence comes from a large randomized, double-blind, placebo-controlled crossover trial in which participants supplemented with 5 g of creatine daily for 6 weeks. Researchers observed small but measurable improvements in cognitive performance, further supporting creatine’s potential role in brain function.⁴

While improvements were not observed across every cognitive measure, the overall findings suggest that creatine may help support cognitive efficiency, particularly in situations where mental energy demands are higher.¹,⁴

Taken together, current evidence indicates that creatine may offer meaningful support for attention, processing speed, and overall cognitive performance as part of a comprehensive brain health strategy.¹,⁴

Creatine and Sleep Deprivation

Creatine may be particularly relevant when the brain is under acute energy stress.⁵

A 2024 Scientific Reports study found that a high single dose of creatine during sleep deprivation improved cognitive performance and processing speed while also changing brain high-energy phosphate markers.⁵

The dose used in that study was 0.35 g per kg of body weight, which is much higher than the typical daily creatine dose used by many consumers.⁵

Because high-dose protocols may increase the likelihood of gastrointestinal discomfort and are not necessary for everyone, people should not assume that sleep-deprivation study doses are appropriate for routine daily use.⁵,⁷

Creatine and Mood

Creatine is also being studied in nutritional psychiatry because brain energy metabolism may be relevant to mood regulation.³,⁸

A 2025 systematic review and meta-analysis found that creatine may offer a small-to-moderate benefit for depressive symptoms, but the evidence was very uncertain and the average effect may not be clinically important.³

From a holistic perspective, creatine may be one nutritional tool to discuss with a qualified clinician when mood, fatigue, exercise recovery, and brain energy are all part of the picture.³,⁸

Why Creatine May Be Especially Interesting for Women

Creatine research in women is still less developed than creatine research in men.⁹

A women’s health review reported that creatine metabolism may be influenced by life-stage factors such as menstruation, pregnancy, postpartum, and menopause.⁹

The same review noted that creatine supplementation may have potential relevance across the female lifespan, including for strength, body composition, mood, and cognitive health.⁹

For Wellex readers, this is important because brain health is often connected to energy, sleep, hormones, stress resilience, muscle health, and healthy aging.²,⁹

Can You Get Creatine From Food?

Yes, creatine is found primarily in animal foods such as red meat and fish.²

People who eat little or no animal protein may have lower dietary creatine intake than omnivores.²,⁴

However, a 2023 randomized controlled trial found that vegetarians did not benefit more from creatine than omnivores in that specific study, which suggests that diet may matter but does not fully predict response.⁴

This is another reason creatine should be approached individually rather than as a one-size-fits-all supplement.⁴

What Type of Creatine Is Best Studied?

Creatine monohydrate is the most studied form of creatine.²

Most clinical research on creatine uses creatine monohydrate, making it the most evidence-supported option for people considering supplementation.²,⁷

Other forms of creatine are often marketed as superior, but there is not strong evidence that they are consistently more effective for brain or body outcomes than creatine monohydrate.²,⁷

How Much Creatine Is Used for Brain Health?

There is no universally established dose for brain health.¹,²

Many general creatine studies use 3 to 5 g per day, while some cognitive or sleep-deprivation studies use higher short-term doses.⁴,⁵,⁷

A practical, conservative approach for healthy adults is often 3 to 5 g of creatine monohydrate daily, although dosing should be individualized based on health status, goals, body size, diet, and clinician guidance.²,⁷

People with kidney disease, people taking kidney-affecting medications, and people who are pregnant or breastfeeding should speak with a qualified healthcare provider before starting creatine.⁷,⁹

Is Creatine Safe?

Creatine is one of the most studied dietary supplements, and creatine monohydrate has a strong safety record in healthy adults.²,⁷

A 2025 systematic review and meta-analysis found that creatine supplementation was associated with a modest increase in serum creatinine, but did not significantly change glomerular filtration rate, suggesting preserved kidney function in the included studies.⁷

Because serum creatinine can rise due to creatine metabolism, lab interpretation should consider supplement use.⁷

Some people may experience gastrointestinal discomfort or temporary water retention, particularly with higher doses or loading protocols.⁴,⁷

Who Might Consider Creatine for Brain Health?

Creatine may be worth discussing with a healthcare provider if someone is interested in supporting memory, mental fatigue, exercise recovery, healthy aging, or cognitive performance during periods of high demand.¹,²,⁵,⁶

It may also be relevant for people who consume little meat or fish, although response can vary and is not guaranteed.²,⁴

Creatine is not a substitute for sleep, adequate calories, protein, hydration, iron status, thyroid assessment, mental health care, or medical evaluation of persistent symptoms.¹,³

Frequently Asked Questions

Is creatine good for brain health?

Creatine may support brain health by helping maintain cellular energy availability, and research suggests potential benefits for memory, attention time, processing speed time, and cognition under stress.¹,²,⁵

Does creatine improve memory?

A 2024 systematic review and meta-analysis found a significant positive effect of creatine supplementation on memory function in adults.¹

Does creatine help with brain fog?

Brain fog is not a formal diagnosis and can have many causes, including poor sleep, stress, low iron, thyroid dysfunction, blood sugar fluctuations, medication effects, and mental health conditions.¹,³

Creatine may support aspects of cognition in some contexts, but persistent brain fog should be assessed by a healthcare provider.¹,³

Is creatine helpful for women?

Creatine may be relevant for women across different life stages, but female-specific research is still developing.⁹

Is creatine safe to take every day?

Creatine monohydrate is generally well studied and appears safe for healthy adults when used appropriately, but people with kidney disease or specific medical conditions should seek medical guidance first.²,⁷

What is the best creatine for brain health?

Creatine monohydrate is the best-studied form and is the most evidence-supported option.²

The Bottom Line

Creatine is more than a gym supplement.¹

It plays a meaningful role in cellular energy metabolism, including in the brain.²

Current research suggests creatine may support memory, attention time, processing speed time, and cognitive performance during periods of metabolic stress such as sleep deprivation.¹,⁵

The evidence is promising but still evolving, and benefits are likely to be modest, context-dependent, and individualized.¹,⁴,⁶

From a naturopathic perspective, creatine fits best as part of a broader brain-health foundation that includes sleep, protein, movement, stress regulation, nutrient sufficiency, hydration, and personalized care.¹,²

References

1. Xu C, Bi S, Zhang W, Luo L. The effects of creatine supplementation on cognitive function in adults: a systematic review and meta-analysis. Front Nutr. 2024;11:1424972. doi:10.3389/fnut.2024.1424972
2. Candow DG, Forbes SC, Ostojic SM, et al. “Heads up” for creatine supplementation and its potential applications for brain health and function. Sports Med. 2023;53(1):49-65. doi:10.1007/s40279-023-01870-9
3. Eckert I, Lima J, Dariva AA. Creatine supplementation for treating symptoms of depression: a systematic review and meta-analysis. Br J Nutr. 2025;134(11):947-959. doi:10.1017/S0007114525105588
4. Sandkühler JF, Kersting X, Faust A, et al. The effects of creatine supplementation on cognitive performance: a randomised controlled study. BMC Med. 2023;21:440. doi:10.1186/s12916-023-03146-5
5. Gordji-Nejad A, Matusch A, Kleedörfer S, et al. Single dose creatine improves cognitive performance and induces changes in cerebral high energy phosphates during sleep deprivation. Sci Rep. 2024;14:4937. doi:10.1038/s41598-024-54249-9
6. Marshall S, Kitzan A, Wright J, Bocicariu L, Nagamatsu LS. Creatine and cognition in aging: a systematic review of evidence in older adults. Nutr Rev. 2026;84(2):333-344. doi:10.1093/nutrit/nuaf135
7. Kabiri Naeini E, Eskandari M, Mortazavi M, Gholaminejad A, Karevan N. Effect of creatine supplementation on kidney function: a systematic review and meta-analysis. BMC Nephrol. 2025;26:622. doi:10.1186/s12882-025-04558-6
8. Hossain M, Khan S, et al. The role of brain creatine in behavioral health conditions. Front Psychiatry. 2025;16:1667639. doi:10.3389/fpsyt.2025.1667639
9. Smith-Ryan AE, Cabre HE, Eckerson JM, Candow DG. Creatine supplementation in women’s health: a lifespan perspective. Nutrients. 2021;13(3):877. doi:10.3390/nu13030877