TLDR Myo-inositol and D-chiro-inositol, especially in a 40:1 ratio, effectively treat PCOS by improving insulin sensitivity and ovulation.
The review examines the use of myo-inositol (MYO) and D-chiro-inositol (DCI) for treating polycystic ovary syndrome (PCOS), finding that MYO alone and in combination with DCI at a 40:1 ratio are effective, particularly for improving insulin sensitivity, ovulatory function, and oocyte quality. A meta-analysis of nine clinical trials involving 247 PCOS patients supports the efficacy and safety of these treatments compared to traditional options like metformin. The review suggests that while the 40:1 ratio is effective, further research into higher MYO ratios, such as 66:1 to 100:1, could enhance treatment outcomes. Maintaining a proper inositol ratio is crucial, as higher DCI concentrations can negatively impact reproductive outcomes.
2 citations
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January 2022 in “Springer eBooks”
54 citations
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August 2017 in “Gynecological Endocrinology” Lifestyle changes and weight loss are key for treating PCOS-related metabolic issues and infertility, with various medications available for specific symptoms.
200 citations
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October 2009 in “European journal of endocrinology” Metformin helps manage polycystic ovary syndrome by improving insulin resistance and ovulation, but more research is needed on its full effects.
36 citations
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May 2021 in “Nutrients” Natural molecules like inositols, resveratrol, vitamins, and omega-3 fatty acids may help manage Polycystic Ovary Syndrome (PCOS), but their effects vary and need more exploration.
August 2015 in “Evidence Based Women Health Journal (Online)” Inositol was more effective than Metformin in treating symptoms of PCOS in women.
September 2025 in “Obstetrics and gynecology.” Myoinositol effectively manages PCOS with fewer side effects than metformin.
21 citations
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September 2017 in “Journal of Obstetrics and Gynaecology Research” Chromium supplements don't improve insulin, hormone levels, or cholesterol in women with PCOS but raise testosterone levels.
54 citations
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August 2017 in “Gynecological Endocrinology” Lifestyle changes and weight loss are key for treating PCOS-related metabolic issues and infertility, with various medications available for specific symptoms.
1 citations
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November 2017 in “International journal of clinical endocrinology and metabolism” The supplement with Myo-inositol and D-chiro-inositol improves metabolic symptoms in PCOS, especially when combined with metformin.