Why is PCOS so common in vegetarians

Soy isoflavones improve the metabolism in polycystic ovarian syndrome | General

The intake of 50 mg daily Isoflavones made from soy can significantly improve the metabolism of women with polycystic ovarian syndrome (PCOS). PCOS is characterized by increased androgen levels and the resulting infertility. Hyperinsulinemia can stimulate androgen production. In a randomized and placebo-controlled intervention study, scientists investigated the influence of daily isoflavone intake for 12 weeks on the metabolism of 18-40-year-old women with PCOS.

Results
Compared to the placebo group, there was a significant improvement in insulin metabolism in numerous parameters. In addition to a decrease in the serum insulin level (P <0.001), there was also an improvement in the HOMA-IR (P <0.001) and the quantitative insulin sensitivity check index (P = 0.01). There was also a decrease in the free androgen index (P <0.001). Further successes were seen in improving the antioxidant status through an increase in the plasma glutathione level (P = 0.04) and a decrease in the plasma malondialdehyde concentration (P = 0.001).

Summary
Soy isoflavones can make an important nutritional contribution to the treatment of PCOS after just 12 weeks.

Jamilian M, Asemi Z.
The Effects of Soy Isoflavones on Metabolic Status of Patients With Polycystic Ovary Syndrome.
J Clin Endocrinol Metab. 2016 September; 101 (9): 3386-94