Yea, i did mention about the serv size, but be inform that different types of protein has different time of absorption. Tues Mass, Real Gains, Muscle Juice ad etc has casein protein, casein is a sustain protein. Where else nitrotech only contains more of whey Isolate and some whey concentrate. So it is no use if a person take it in a large amount because it cannot fully absorb nor sustain in the our system like casein.