I would think so. Like I said, solid food needs to be broken down and that takes a longer period of time versus something that has already been broken down. This is my standpoint on it, my opinion, and from medical standpoint it's correct. Now if there was a chart indicating when was the casseinate activated, peaked, and when the anabolism died out you could be more precise w/ the conclusion. But for now i'm sticking to my opinion.