text: what foods will help build muscle mass on a man's body?   a great source of protein is hard boiled eggs, but just eat the white. give the yolk to your dog or cat. that way you avoid the fat and cholesterol. or make scrambled eggs and before cooking separate out the yolk and just use mostly whites, with maybe just one yolk. lean fish and chicken are great, too, and if you can afford it, buy organic and all-natural meat. you still need to balance it out with fresh green and yellow vegetables, fresh fruit, whole grains (like oatmeal, whole-grain bread, brown rice, etc) for a balanced diet.