Uh ...... I think you can slam a boatload of protein in a meal ........
However, can your body use it?
There are limits as to how much your body can use, assimilate, digest, effectively in one meal. I have heard figures of about 50 g max protein per meal.
I cant rememnber where I saw this figure though.
One thing is that taking Ginger Root helps to increase the body's ability in this area, and makes it just easier to tolerate high-volume-protein meals.