If you use whey IMO you should eat something close to an hour later. W/ cassein and egg powders, maybe you can wait till the second hour. Incorporate some flax seed oil and some fiber (like metamucil) to slow down the whey break down. I've read that after an hour and a half you will be more catabolic then when you started before your whey shake. So eat up guys, real food is the best. Who cares if you eat more chicken, fish, steaks or cottage cheese?