There are several studies on the effects of soy-based estrogenic effects on men; here are three: Hormonal effects of soy in premenopausal women and men http:/

There are several studies on the effects of soy-based estrogenic effects on men; here are three: Hormonal effects of soy in premenopausal women and men http://jn.nutrition.org/content/132/3/570S.long http://jn.nutrition.org/content/132/3/570S.long Effects of replacing meat with soyabean in the diet on sex hormone concentrations in healthy adult males https://www.cambridge.org/core/services/aop-cambridge-core/content/view/50C464775151BA6ECBF767221F763AFF/S0007114500001872a.pdf/effects_of_replacing_meat_with_soyabean_in_the_diet_on_sex_hormone_concentrations_in_healthy_adult_males.pdf https://www.cambridge.org/core/services/aop-cambridge-core/c... Effect of a phytoestrogen food supplement on reproductive health in normal males http://www.clinsci.org/content/100/6/613.full-text.pdf http://www.clinsci.org/content/100/6/613.full-text.pdf