Supplements for PCOS: What Has Evidence and What’s Hype

Topic: Supplement guide

The supplement industry loves PCOS. Influencers sell “hormone balancing” gummies with vague promises. But PCOS is a serious medical condition, and your wallet deserves respect.

According to the 2023 Guidelines, only a few supplements have strong enough evidence to be recommended.

1. Inositols (The Gold Standard)

• What it is: A sugar alcohol (vitamin B8 family).
• The Evidence: Strong. It improves insulin sensitivity nearly as well as Metformin. It restores ovulation and improves egg quality.
• The Dose: Look for a 40:1 ratio of Myo-Inositol to D-Chiro-Inositol. (Usually 2g twice a day).

2. Vitamin D

• What it is: A pre-hormone.
• The Evidence: Strong. 67-85% of women with PCOS are deficient. restoring levels improves fertility and metabolic health.
• The Action: Test first. If low, supplement to reach > 40 ng/mL.

3. Omega-3 Fatty Acids (Fish Oil)

• The Evidence: Moderate. It reduces inflammation, lowers tryglicerides, and may help with fatty liver (common in PCOS).
• The Dose: ranges differ, but generally >1000mg EPA/DHA.

4. Berberine

• The Evidence: Emerging/Strong. Often called “Nature’s Metformin.” It lowers blood sugar effectively.
• Caveat: It interacts with liver enzymes and should not be taken if pregnant or trying to conceive. Consult a doctor.

The “Save Your Money” List

• Biotin: Great for nails, but can mess up your Thyroid lab test results. Stop 3 days before blood work.
• “Hormone Balancing Blends”: Avoid proprietary blends where you don’t know the dosage of individual ingredients.

Start with one thing (usually Inositol). Give it 3 months. Supplements are slow medicine.