Concerns›Women

Women's health

Check what applies to you and the best-matched supplements move to the top.

Nothing checked yetDefault order, by strength of evidence.

Bottom line

For women's health, start with Vitamin D, Omega-3, Indole-3-carbinol (I3C). The first one to look at is Vitamin D — Start at 4,000 IU for 3–6 months → maintain at 1,000–2,000 IU; Right after breakfast or lunch.

Supplements ranked for this concern

AWell researchedBSome evidenceCLimited evidence
#SupplementEvidenceWhenHow muchCaution
1 Vitamin D
Studies show vitamin D levels and fibroids tend to move in opposite directions. It also helps the liver process estrogen through a healthier pathway.
B Right after breakfast or lunch Start at 4,000 IU for 3–6 months → maintain at 1,000–2,000 IU Keep your total, including multivitamins, at 4,000 IU a day or less. Compare products
2 Omega-3
Lowers inflammation and insulin resistance, which can drive excess estrogen, and may help ease fibroid pain.
B Right after a meal 1–2 capsules a day of a 1,000 mg EPA+DHA product If you take a blood thinner, talk to your doctor first. Compare products
3 Indole-3-carbinol (I3C)
A compound from cruciferous vegetables that steers estrogen toward a healthier pathway in the liver to support hormone balance.
C Daily, consistently As directed on the product label (DIM form for stronger symptoms) If you're pregnant, breastfeeding or being treated for a hormone-related condition, talk to your doctor first. Details
4 Magnesium
Helps your body cope with stress that throws off hormones. Long-term use of birth control pills or hormone therapy can lower it, so it's worth adding.
B After a meal. If sleep is the issue, after dinner. 200–400 mg a day (as elemental magnesium) If you have kidney disease, talk to your doctor first. Compare products
5 Soy isoflavones
Binds very weakly to estrogen receptors and works to buffer excess estrogen activity.
C Take it daily, then on and off once things settle Start with one 60 mg capsule Research on how it affects fibroids and cysts is mixed. Follow your doctor's guidance, and don't take it if you're being treated for a hormone-related cancer. Details
6 B-complex
Supports hormone metabolism (methylation) and stress response. Long-term birth control pill use can deplete it.
C After breakfast or lunch 1 capsule with 20–50 mg of each main B vitamin (total B6 at 100 mg or less) Taken in the evening it can disturb sleep. Compare products
7 Resveratrol
A small study of about 40 women with endometriosis found it suppressed blood vessel growth signals and symptoms improved.
C After a meal works well 200–400 mg a day If you take blood thinners or anti-clotting drugs, talk to your doctor. Details

Medications to watch out for

If you take any medication, talk to your doctor or pharmacist before starting.

Being treated for breast cancer or another hormone-related cancerSoy isoflavones · Indole-3-carbinolThese act on hormones. Don't take them, or be sure to talk to your doctor first.
Birth control pills and hormone therapySoy isoflavones · Indole-3-carbinolThey act on the same hormone pathways. Talk to your doctor.
Blood thinners such as warfarin (Coumadin) and aspirinOmega-3 · ResveratrolBleeding risks may add up. Talk to your doctor.
Blood pressure medicineOmega-3 · MagnesiumMay lower blood pressure a bit more and make you dizzy.

Before supplements: daily habits

  1. 01If your periods suddenly get heavier or pain gets worse, get an ultrasound to check what's going on first.
  2. 02If fibroids come back or there are several, managing stress and sleep matters even more.
  3. 03If you don't get much sun, have your vitamin D level tested and top it up.
  4. 04Eat cruciferous vegetables like broccoli and cabbage often.
  5. 05The claim that omega-3 makes fibroids grow is a mix-up with DHEA. You don't need to worry about taking it.

Product comparison

ProductFormPer servingCountCost per day
Vitamin D3 1000 IU SoftgelsBest value
Nature's Bounty
D3 in soybean oil softgels1,000 IU per serving350 Low Amazon →
Vitamin D3 5000 IU Softgels
Viva Naturals
D3 in coconut oil softgels5,000 IU per serving360 Low Amazon →
Vitamin D-3 1,000 IU Softgels
NOW Foods
D3 in olive oil softgels1,000 IU per serving360 Low Amazon →
Vitamin D3 1000 IU Softgels
Nature Made
D3 in soybean oil softgels1,000 IU per serving300 Low Amazon →
Vitamin D-3 2,000 IU Softgels
NOW Foods
D3 in olive oil softgels2,000 IU per serving240 Low Amazon →
Vitamin D3 2000 IU Softgels
Nature's Bounty
D3 in soybean oil softgels2,000 IU per serving350 Low Amazon →
Vitamin D3 5000 IU Softgels
Doctor's Best
D3 in olive oil softgels5,000 IU per serving360 Low Amazon →
Vitamin D3 2000 IU Mini Softgels
NatureWise
D3 in olive oil mini softgels2,000 IU per serving360 Low Amazon →

Compare all Vitamin D products →

Cost per day is relative — compared with other products of the same supplement. Check Amazon for the current price. Some links are affiliate links.

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