i heard that the ATOS and Danaher guys are now injecting bull semen directly into their testicles for a competitive advantage.
you also want to be sure to eat raw foods that stimulate testosterone production. the best way is to eat a balanced diet that allows you to absorb the nutrients as completely as possible. while chewing your food thoroughly helps, the real secret is that the professionals blend all of their meals.
try a week or so on the smoothie diet and see how you feel. the nice thing is that since you're drinking your calories instead of eating them, you can have 6-8 smoothies per day to keep cravings down and maximize gains.
i recommend a smoothie of egg, kale, broccoli, skirt steak, coffee, acai, avocado, fish oil and melted butter for liquid, and if you're really trying to take your training to the next level, top it all off with 2 scoops of whey protein.