not all the products from gnc are approve by the fda. just a waste of money imo. the only thing i would buy from gnc are vitamins and protein shakes that's about all i know will work. my old man, is an old school he told me when he won first place in the master class (40 plus year old) powerlifting contest, he said he never took any of those "muscle in the bottle" that's what he called gnc products. during his training he took vitamins, daily whole some meal and intense work out. at 56 y.o. now and he still active and ripped.
