i have answered this question 3 times now....hopefully you have not received my 3 answers. we are changing some things re my site and now we are working out the bugs.
gaining weight---yes...i have lots of suggestions that have worked very well with my athletes and my own children. first off i have them pack 4-5 pb and or bananna sandwiches with their other food that is eaten. they have to take these "longhorn steroids" as we call them on the hour. 1 after each class. they eat their normal food intake as well....the problem with kids is that they do not eat enough...period....with casey b i use to make him a 1100 cal protein drink at night....we would put it in a thermos and i would wake him at 0200 to drink it....then at breakfast i would fix him steak and eggs....to this day he will not eat steak and eggs!!! but he did gain weight!!!
hope this helps,