I would say that few of the top pro bodybuilders use what their companies give them. I doubt any of them use NO products. I doubt any of them use a lot of proprietary blends. Most of them, outside of tremendous steroid use, and nearly perfect diets, use a lot of the basics, such as BCAA's, glutamine, vitamins, whey protein isolates, and casein proteins. I'd say that a lot of pro bodybuilders don't consume more than 2-3 shakes a day, considering they have all day to eat, all of the money to buy top quality food, and even afford to have their own chefs make their meals. This is just my two cents, I am sure some will disagree with me, but let's face it, there is a tremendous difference between us and pro bodybuilders.