Women's Health Supplements

Prenatal & Reproductive Health

Prenatal vitamins are one of the few supplement categories with strong medical consensus. Key ingredients and their clinical doses:

• Folate/Methylfolate (400-800mcg): Essential for neural tube development. Methylfolate (5-MTHF) is preferred over folic acid for women with MTHFR gene variants — roughly 40% of the population has reduced ability to convert folic acid.
• Iron (27mg elemental): Critical during pregnancy when blood volume increases 50%. Ferrous bisglycinate causes less GI distress than ferrous sulfate.
• DHA (200-300mg): Omega-3 fatty acid supporting fetal brain and eye development. Look for third-party tested fish oil or algal DHA.
• Choline (450mg): Often missing from prenatals despite strong evidence for fetal brain development. Check labels — most products underdose or omit choline entirely.

Bone Health & Calcium

Osteoporosis affects 1 in 4 women over 65. Bone-protective supplementation should start years before menopause, not after a DEXA scan shows problems.

• Calcium (500-600mg/dose): Split doses for better absorption. Calcium citrate absorbs well regardless of stomach acid; calcium carbonate requires food. Don't exceed 1,000mg/day from supplements — excess calcium may increase cardiovascular risk.
• Vitamin D3 (2,000-4,000 IU): Essential for calcium absorption. Most women are deficient, especially above 35° latitude. Get levels tested — target 40-60 ng/mL.
• Vitamin K2 (MK-7, 100-200mcg): Directs calcium into bones rather than arteries. Emerging evidence suggests K2 is as important as D3 for bone mineral density.
• Magnesium (300-400mg): Cofactor in bone metabolism. Glycinate or citrate forms are better absorbed than oxide.

Hormonal Balance & Menopause

Menopause supplements are heavily marketed but unevenly supported by research. Some ingredients have genuine evidence; many don't.

• Black Cohosh (20-40mg): The most-studied herbal option for hot flashes. Evidence is mixed but leans positive in some meta-analyses. Use standardized root extract.
• Evening Primrose Oil (500-1000mg): Contains GLA (gamma-linolenic acid). Modest evidence for breast tenderness and PMS symptoms. Less evidence for hot flashes despite marketing claims.
• Dong Quai: Used in traditional Chinese medicine but limited clinical evidence as a standalone for menopause symptoms.

What to watch for: "Estrogen-balancing" claims on supplements are almost always marketing language, not clinical descriptions. No over-the-counter supplement replaces hormone replacement therapy (HRT) for moderate-to-severe menopause symptoms.