This question is for my son , and before I go spitt'n off shit like I know everything I wanted to pose the question to you all. Obviously he is trying to add muscle and size. 5' 11 165 lbs 16% bf lifting 4 days a week 5 days a week light cardio ( baseball practice) some days more conditioning than others. Calories are all over the place , so is protein in take which I think is the main problem. So I'm just looking to come up with plan and try to help him stick with it. Are there any sups safe for someone that young ?