Mineral Deficiencies in Women:
Signs, Causes, and How to Support Optimal Health

Mineral Deficiencies in Women Are More Common Than You Think

Fatigue that won't go away. Frequent headaches. Muscle cramps. Hair shedding. Feeling cold all the time.

While these symptoms can have many causes, mineral deficiencies are often an overlooked piece of the puzzle.

Minerals are essential nutrients that support energy metabolism, thyroid function, immune health, nervous system function, bone health, and hormone production.¹

Research suggests that inadequate intake of key minerals remains common worldwide, with women disproportionately affected by deficiencies in iron, iodine, calcium, magnesium, zinc, selenium, and other micronutrients due to menstruation, pregnancy, dietary patterns, and increased physiological demands.²

From a naturopathic perspective, symptoms can sometimes reflect underlying nutritional imbalances. Mineral status is one foundational area worth evaluating when persistent symptoms arise.

What Are Mineral Deficiencies?

A mineral deficiency occurs when the body does not receive, absorb, or utilize enough of a specific mineral to meet physiological needs.¹

Minerals participate in hundreds of enzymatic and biochemical processes throughout the body, influencing energy production, cellular signaling, immune function, hormone synthesis, oxygen transport, and bone metabolism.¹

Even mild deficiencies may contribute to symptoms before a deficiency progresses to a diagnosable condition.¹

Why Are Women More Vulnerable to Mineral Deficiencies?

Women's nutrient needs shift throughout different life stages.

Menstruation

Menstrual blood loss increases iron requirements and is one of the leading contributors to iron deficiency among women of reproductive age.³

Pregnancy and Breastfeeding

Pregnancy significantly increases the body's requirements for iron, iodine, zinc, calcium, and other micronutrients needed to support maternal health and fetal development.⁴

Restrictive Diets

Vegetarian, vegan, low-calorie, and highly restrictive eating patterns may increase the risk of inadequate intake of certain minerals if not appropriately planned.²

Digestive Challenges

Digestive conditions that impair absorption, including celiac disease, inflammatory bowel disease, and chronic gastrointestinal disorders, may contribute to nutrient deficiencies.¹

Soil Depletion and Food Quality

Modern agricultural practices may influence the mineral content of some foods. Selenium content, for example, varies considerably depending on soil concentrations, which can affect dietary intake across different geographic regions.⁸

The Most Common Mineral Deficiencies in Women

1. Iron Deficiency

Iron deficiency is among the most common nutrient deficiencies globally and disproportionately affects women during their reproductive years.²,³

Common Symptoms of Iron Deficiency

Common symptoms may include:³

• Fatigue
• Weakness
• Reduced exercise tolerance
• Shortness of breath
• Dizziness
• Hair loss
• Difficulty concentrating

Food Sources of Iron

• Red meat
• Poultry
• Shellfish
• Lentils
• Beans
• Pumpkin seeds

Consuming vitamin C-rich foods alongside plant-based iron sources can improve non-heme iron absorption.⁵

2. Magnesium Deficiency

Magnesium is a cofactor in more than 300 enzymatic reactions and plays important roles in energy metabolism, muscle contraction, nervous system function, and blood glucose regulation.⁶

Although severe magnesium deficiency is relatively uncommon, inadequate magnesium intake remains widespread in many populations.⁶

Possible Symptoms of Low Magnesium

Magnesium insufficiency has been associated with:⁶

• Muscle cramps
• Muscle twitches
• Fatigue
• Sleep disturbances
• Headaches
• Reduced stress resilience

Food Sources of Magnesium

• Pumpkin seeds
• Almonds
• Cashews
• Black beans
• Avocado
• Leafy greens

3. Iodine Deficiency

Iodine is required for the production of thyroid hormones, which regulate metabolism, growth, and neurological function.¹

Women are at greater risk of iodine insufficiency during pregnancy and reproductive years due to increased physiological demands.²,⁴

Possible Symptoms of Iodine Deficiency

Symptoms associated with inadequate iodine status may include:¹

• Fatigue
• Feeling cold
• Dry skin
• Hair thinning
• Brain fog
• Changes in thyroid function

Both iodine deficiency and excessive iodine intake may negatively affect thyroid health, highlighting the importance of individualized assessment.¹

4. Zinc Deficiency

Zinc contributes to immune function, wound healing, reproductive health, DNA synthesis, and cellular growth.¹

Potential Signs of Zinc Deficiency

Low zinc status may contribute to:¹

• Frequent illness
• Slow wound healing
• Hair shedding
• Changes in taste or smell
• Reduced appetite

Food Sources of Zinc

• Oysters
• Beef
• Poultry
• Pumpkin seeds
• Chickpeas
• Hemp seeds

Phytates naturally found in legumes and grains may reduce zinc absorption, which can increase zinc requirements in some plant-based diets.¹

5. Calcium Deficiency

Calcium is essential for bone health, muscle contraction, nerve signaling, and cardiovascular function.⁷

Inadequate calcium intake remains a significant global public health concern.²

Possible Signs of Low Calcium Intake

• Muscle cramps
• Brittle nails
• Reduced bone mineral density over time
• Increased osteoporosis risk

Food Sources of Calcium

• Dairy products
• Sardines
• Tofu
• Tahini
• Kale
• Bok choy

Calcium's Important Nutrient Partners

Calcium does not work in isolation.

Vitamin D helps increase calcium absorption from the digestive tract and supports bone mineralization.⁷

Magnesium plays a critical role in vitamin D activation and calcium regulation within the body.⁶˒⁷

Vitamin K2 helps direct calcium into bones and teeth while supporting healthy calcium distribution throughout the body.⁹

Optimal bone health depends on adequate intake and balance of all of these nutrients rather than calcium alone.⁷˒⁹

6. Selenium Deficiency

Selenium is a trace mineral that plays important roles in antioxidant defense, immune function, reproductive health, and thyroid hormone metabolism.⁸

Selenium is required for enzymes that help convert thyroxine (T4) into the more biologically active thyroid hormone triiodothyronine (T3), making it an important nutrient for thyroid health.⁸

Selenium intake can vary considerably depending on soil concentrations, and low-selenium regions may be associated with lower dietary intake.⁸

Possible Signs of Low Selenium Status

Low selenium status may contribute to:⁸

• Fatigue
• Impaired thyroid function
• Increased oxidative stress
• Weakened immune function
• Hair thinning

Food Sources of Selenium

• Brazil nuts
• Seafood
• Tuna
• Sardines
• Eggs
• Turkey
• Sunflower seeds

Brazil nuts are among the richest dietary sources of selenium, although selenium content can vary substantially depending on where they are grown.⁸

Can You Be Deficient Even If You Eat a Healthy Diet?

Yes.

Diet is only one factor influencing mineral status.

Additional factors include:¹

• Malabsorption
• Digestive disorders
• Certain medications
• Increased physiological demands
• Heavy menstrual bleeding
• Chronic inflammation

This is why individualized assessment is often more informative than focusing on dietary intake alone.

How to Support Healthy Mineral Levels Naturally

Prioritize Nutrient-Dense Foods

A varied diet rich in vegetables, legumes, seafood, quality proteins, nuts, seeds, and whole foods helps support adequate mineral intake.¹

Support Digestive Health

Healthy digestion plays an important role in nutrient absorption and utilization.¹

Avoid Unnecessary Restriction

Long-term restrictive dietary patterns may increase the risk of nutrient gaps if not carefully planned.²

Consider Testing When Appropriate

Laboratory testing can help identify certain nutrient deficiencies and guide personalized interventions.¹

Use Supplements Strategically

Supplements may be beneficial in specific situations, but they should complement rather than replace a nutrient-dense dietary foundation.¹

References

1. Raiten DJ, Ashour FAS, Ross AC, et al. The science of micronutrients in clinical practice. Clin Nutr. 2023;42(10):1761-1774. doi:10.1016/j.clnu.2023.06.021
2. Passarelli S, Free CM, Shepon A, et al. Global estimation of dietary micronutrient inadequacies: a modelling analysis. Lancet Glob Health. 2024;12(10):e1590-e1599. doi:10.1016/S2214-109X(24)00276-6
3. Haas JD, Egli I, Beard JL, et al. Identification and management of iron deficiency in women of reproductive age. Int J Gynecol Obstet. 2023;163(S1):12-22.
4. Camaschella C, Pagani A, Nai A, Silvestri L. Iron deficiency and micronutrient needs across the female life cycle. JAMA. 2025.
5. Lynch SR, Cook JD. Interaction of vitamin C and iron absorption: mechanisms and implications. Am J Clin Nutr. 2023 update review.
6. Schuette SA, Rosanoff A, DiNicolantonio JJ, et al. Magnesium: health effects, deficiency burden, and future public health directions. Nutrients. 2025;17(22):3626.
7. Weaver CM, Gordon CM, Janz KF, et al. Peak bone mass development and lifestyle factors: a systematic review and position statement. Osteoporos Int. 2016;27(4):1281-1386. doi:10.1007/s00198-015-3440-3
8. Kieliszek M. Selenium—fascinating microelement, properties and sources in food. Molecules. 2019;24(7):1298.
9. Akbari S, Rasouli-Ghahroudi AA. Vitamin K and bone metabolism: a review of the latest evidence in preclinical studies. Biomed Res Int. 2018.