The Health Integrity Project
Evidence Supports

Supplements can treat PCOS (polycystic ovary syndrome)

Various supplements (inositol, vitex, etc.) can reverse PCOS symptoms

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  • Invalid

    Ovulatory and metabolic effects of D-chiro-inositol in the polycystic ovary syndrome

    Published 1999
    Reviewer Insight
    2/3/2026

    The study was funded by Insmed Pharmaceuticals (in addition to NIH funding)

    • Dr. Nestler served as a consultant to Insmed Pharmaceuticals
    • Three of the five researchers (Paula Reamer, Ronald D. Gunn, Geoffrey Allan) were affiliated with Insmed Pharmaceuticals
    • Insmed held a patent on DCI for PCOS treatment obtained in 1998, before this 1999 study was published
    • The company studied stood to directly benefit from positive findings showing D-chiro-inositol treats PCOS.
  • Limited Tested in Humans

    A clinical study on the short-term effect of berberine in comparison to metformin on the metabolic characteristics of women with polycystic ovary syndrome

    Published 2012
    Reviewer Insight
    2/3/2026

    Key Findings:

    • Berberine Improves Lipid Profiles and Dyslipidemia (Key PCOS Complication)
    • Berberine Improves Insulin Sensitivity (Core PCOS Dysfunction)

    Summary of Major Limitations:

    • Small sample size with unknown dropout rate
    • Blinding procedures not documented
    • Concomitant anti-androgen medication confounds the results
    • Short-term intervention (3 months only)
    • Limited to women with insulin-resistant PCOS phenotype
    • Baseline confounding variables not clearly documented
  • Awaiting Review

    Comparison of nutritional supplements in improving glycolipid metabolism and endocrine function in polycystic ovary syndrome: a systematic review and network meta-analysis.

    Published 2023
  • Awaiting Review

    The Role of Zinc in Selected Female Reproductive System Disorders.

    Published 2020

Snapshot built: 2026-06-19