I've seen tons and tons of people pointing out that soy contains phytoestrogens but I've never seen a single study that showed that it had any significant effec

I've seen tons and tons of people pointing out that soy contains phytoestrogens but I've never seen a single study that showed that it had any significant effect on an adult male. I have seen studies that have shown no statistical difference between a diet high in phytoestrogens and a normal diet. Here's the abstract of an examination of 9 different clinical studies on the topic: http://www.fertstert.org/article/S0015-0282(10)00368-7/abstract http://www.fertstert.org/article/S0015-0282(10)00368-7/abstr... . Also, I'd like to point out that your first reference even states that a diet heavy in soy is unlikely to have any harmful effects. It also only provided two anecdotes of men with a hormonal problem and in both of those cases the cause was never determined. I'd need to see some pretty strong proof before I am convinced that the amount of soy in Soylent is anything to be concerned about.