Originally posted by Emmanuelle I'm not really sure why anyone with pcos would want to use soy and black cohosh when they both have strong estrogenic properties. Women with pcos lack progesterone and usually have too much estrogen.
I just found this:
...phytoestrogens are another type of plant compound that may protect against endometrial cancer. Phytoestrogens have a weak estrogenic effect and may encourage the body to produce less estrogen...
A link at the end of the piece went to this:
Phytoestrogen intake and endometrial cancer risk.
Horn-Ross PL, John EM, Canchola AJ, Stewart SL, Lee MM.
Northern California Cancer Center, Union City, CA 94587, USA. phornros@nccc.org
BACKGROUND: The development of endometrial cancer is largely related to prolonged exposure to unopposed estrogens. Phytoestrogens (i.e., weak estrogens found in plant foods) may have antiestrogenic effects. We evaluated the associations between dietary intake of seven specific compounds representing three classes of phytoestrogens (isoflavones, coumestans, and lignans) and the risk of endometrial cancer. METHODS: In a case-control study from the greater San Francisco Bay Area, we collected dietary information from 500 African American, Latina, and white women aged 35-79 years who were diagnosed with endometrial cancer between 1996 and 1999 and from 470 age- and ethnicity-matched control women identified through random-digit dialing. Unconditional logistic regression analyses were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: Isoflavone (OR = 0.59, 95% CI = 0.37 to 0.93 for the highest versus lowest quartile of exposure) and lignan (OR = 0.68, 95% CI = 0.44 to 1.1) consumptions were inversely related to the risk of endometrial cancer. These associations were slightly stronger in postmenopausal women (OR = 0.44, 95% CI = 0.26 to 0.77 and OR = 0.57, 95% CI = 0.34 to 0.97 for isoflavones and lignans, respectively). Obese postmenopausal women consuming relatively low amounts of phytoestrogens had the highest risk of endometrial cancer (OR = 6.9, 95% CI = 3.3 to 14.5 compared with non-obese postmenopausal women consuming relatively high amounts of isoflavones); however, the interaction between obesity and phytoestrogen intake was not statistically significant. CONCLUSION: Some phytoestrogenic compounds, at the levels consumed in the typical American-style diet, are associated with reduced risk of endometrial cancer.
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That's quite interesting...but there are also experts who say the opposite...so it's quite confusing. I don't think that a moderate amount of phytoestrogens is bad...it probably is actually good, but to take a phytoestrogen formula daily, that I'm not sure.
Hey Emmanuelle - Re: Phytoestrogens 
