Your body weight and more importantly how much muscle mass you are carrying is what will determine how much protein you can or should consume per meal. The general rule of thumb is 1-2g per lb of body weight split up evenly through the day, say 6-8 meals. Generally speaking this usually comes out to 40g-60g per meal for most, but less or more can be applicable depending on the amount of muscle the individual is carrying. Take Marcus Ruhl for instance, I've read many times that he keeps his protein intake at 60g-80g per meal, and that is a shit load of protein, but he carries a shit load of muscle, so his body very well may be able to process this large amount.
