There are lots of food and natural supplements that can improve men’s fitness and performance by boosting the male hormone. Soy and testosterone, however, isn’t a combination that many consider beneficial. Soy foods have been under a lot of flak lately due to recent proof of it being detrimental to hormonal balance. Even the term “soy boy” has emerged to make fun of effeminate men. So, is there truth in that? Does soy kill testosterone? Is there an actual need to stay away from it? Let us find out what’s really going on here.