Black Cohosh Extract Fermented Soy Dietary Supplement Vegetarian Benefits of Soy Soybeans contain phytoestrogen compounds called isoflavones, which help ease hormonal transition. Research shows that consuming a soy-rich diet supports: Breast and bone health. Reduced incidence of hot flashes and other menopausal symptoms. The diets referred to in this research involve fermented soy found in foods such as natto, miso and tempeh. EstroSoy provides fermented soy in convenient vegetarian capsules. EstroSoy Difference Fermented Soy EstroSoy is made from fermented soybeans with a proprietary process. Easily Utilized Because EstroSoy contains fermented soy, it delivers isoflavones (genistein and daidzein). With Black Cohosh EstroSoy also contains black cohosh standardized extract to help relieve menopausal symptoms.