Excellent article, but I would add phytoestrogens in vegetables like broccoli and legumes like soy...especially soy. Soy is used in vast amounts of processed foods now as a cheap filler/binder. The amount of phytoestrogens received from food is amazing. Cutting back on soy will not only increase testosterone, but also reduce pot bellies and man-boobs, although don't underestimate the value of exercise in this regard, as well. Keep up the good work!