I have never seen a credible study showing this effect. I also invite you to hop on down to the "kinks" thread in the dating forum if you think soy-eating vegans can't get their freak on Seriously, though, as I mentioned earlier, there is a lot of ignorance regarding the meaning of "phytoestrogen". You will not grow boobs, and your penis will not shrivel away to nothingness, nor will you suddenly start enjoying Sex & The City. Ironically, taking testosterone (i.e. chowing down on 'roids) will actually produce those effects. Well, not the Sex & The City part. That was a joke. but there's a lot of saying that soy contain estro-- oh my god i wanna be father someday