Some of you may have good diet's to gain size or drop body fat and it's still not working as well as you hoped for, so you searched around asked question's and still can't figure out why it isnt working? well maybe its because of your blood type..
I suggest if your stuck in this situation to read the following:
Joseph Christiano Bloodtype, Bodytype, and you.
This books explain what food's according to your blood type, that will either help you lose fat, or gain size. It's very affective.