Maybe I'm missing what you are asking, but no, milk doesn't hamper protein absorbtion. It is actually an excellent source of casein protein. Casein is 70-80 percent bioavailable as opposed to the +/- 90 percent bioavailability of whey. However, it degrades over about a 5hour window as opposed to two. Some people feel that the lactose causes them to hold water, but I don't have that problem with it. I love milk and it is a staple of my protein intake.