Best Supplements for Women

47,000+ trials analyzed
59,000+ interactions
Not FDA evaluated

Evidence-based supplement recommendations for women's unique nutritional needs, hormonal health, and common deficiencies.

Quick Answer

Top 3 supplements for women: Iron (Bisglycinate), Vitamin D3, Magnesium Glycinate. These address the most common deficiencies and health concerns for this group.

Iron deficiency
Bone health
Hormonal balance
Energy levels
Skin & hair health

Common Deficiencies in Women

Understanding which nutrients women commonly lack helps prioritize supplementation. These deficiencies are backed by population studies and clinical research.
NutrientPrevalenceWhy It Happens
Iron~20% of womenMenstrual blood loss depletes iron stores
Vitamin D~40% deficientLimited sun exposure, higher body fat stores
CalciumCommon after 30Bone density peaks at 30, then declines
Magnesium~50% inadequateStress, coffee, and processed foods deplete stores
FolateCritical for childbearing ageEssential for fetal development

Essential Supplements

These supplements have strong evidence for women and address the most common nutritional gaps. Consider these your foundation.
#1Iron (Bisglycinate)Strong Evidence

Addresses the most common deficiency in women

Dose:18-27mg daily
#2Vitamin D3Strong Evidence

Supports bone density and mood regulation

Dose:2000-4000 IU daily
#3Magnesium GlycinateStrong Evidence

Helps with PMS, sleep, and stress

Dose:300-400mg daily

Recommended Supplements

These supplements offer additional benefits for women based on specific needs and goals. Not everyone needs all of these - prioritize based on your individual situation.

Supports heart, brain, and skin health

Dose: 1000-2000mg EPA+DHA
B-Complexmoderate

Energy production and hormone metabolism

Dose: As directed
Probioticsmoderate

Vaginal and gut microbiome support

Dose: 10-50 billion CFU

Worth Considering

Collagen

Skin elasticity and joint support

What to Avoid or Limit

  • Excess Vitamin A (Retinol). Toxic in pregnancy, limit to 3000 IU unless directed
  • High-dose Iron (if not deficient). Can cause constipation and oxidative stress

Lifestyle Factors

Supplements work best when combined with lifestyle awareness. These factors significantly affect nutrient needs for women.
Menstrual cycle affects nutrient needs - iron needs increase during period
Pregnancy and breastfeeding require specific supplementation protocols
Oral contraceptives can deplete B vitamins, magnesium, and zinc
Perimenopause/menopause changes calcium and vitamin D requirements

Special Considerations

  • 1.Get iron levels tested before supplementing (ferritin test)
  • 2.Vitamin D with K2 for optimal bone health
  • 3.Take iron separately from calcium (2+ hours apart)
  • 4.Methylfolate preferred over folic acid for many women

Frequently Asked Questions

Take iron on an empty stomach or with vitamin C for best absorption. Avoid taking with calcium, coffee, or tea which reduce absorption by up to 60%.

Related Guides

About this information: Our recommendations draw from peer-reviewed clinical trials, systematic reviews, and the same medical databases your doctor uses. These statements have not been evaluated by the FDA. Supplements are not intended to diagnose, treat, cure, or prevent any disease.

Moderate Evidence

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