A similar trend is seen for prostate cancer and soy intake in Asian males. A review of the clinical effects of phytoestrogens. Obstet Gynecolo . In clinical trials, a high intake of isoflavones depresses LH levels, thereby exerting some antiestrogenic effect. As yet there have been no interventional studies published on the impact of isoflavones on menopausal symptoms such as hot flashes, dyspareunia, and vaginal dryness.
Several trials are currently in progress.
If soy produces prove to ameliorate menopausal symptoms and mitigate cardiac and cancer risks, health professionals should actively advocate their increased consumption.