Question: how much protein does a 200 pound man need to build muscle?
Answer: Many sports nutritionists endorse 2.0 gm/kg/day as an upper ceiling of protein intake for athletes. Lower amounts would be sufficient for moderate- or low-intensity training. For a 200-pound bodybuilder, that would translate to 180 grams per day (90 kg x 2.0 gm/kg = 180 grams).