i am not a big fan of them either. not only do that not work the extra protein load has the potential of harming the kidneys. i think you are wise to discourage their use.
can weight gain supplements be harmful to teenage boys. my son is 16 & started lifting last year. he wants to buy weight gain supplements & claims they're all natural. i am against this because he is not done with growing & don't feel it will be safe in long run. please give advice. ty