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Is soy food turning men into massive pussies?
Soybean protein naturally contains compounds called isoflavones, predominantly genistein and daidzein. These compounds are not estrogens and do not directly add to estrogen levels in the blood. They can, however, affect estrogen metabolism. Soy protein and isoflavones may have minimal effects on blood estrogen levels in postmenopausal women and in men. In premenopausal women who have much higher natural estrogen levels, eating soy protein likely has no effect.