I eat a wide variety of proteins, and seem to react the same to all of them (milk, egg, casein, whey, chicken, beef, fish, pork, etc...). It's carbs that I react funny to. For example, oatmeal and sweet potatoes are fine, but rice and other grains knock me down for the count. As I once told Wilson6, if I want to take a two hour nap, all I have to do is eat a peanut butter and jelly sandwich. Toss in that Dr. Pepper that BBF mentioned, and I'm gonna be in a coma. lol