I am trying to gain back all i lost due to an injury and other stupid reasons. I am currently eating about every 3 hours, Eating as much as i can without getting tired. So far from july 4th i have gone from 150 to 168. Im very lean so thats never been an issue, about 11% fat. its working out to about 4000 cal a day. I notice my appetite is getting more and more. at what point is it a waste? is there a way to tell? Im not getting a belly so am i good lol? What is the rule of thumb on how often how much and how much per day. I just started training this week. so that is going to affect it too.