actually it's not.. lean beef is better, but casein has the same property... long lasting/digesting protien for sustained amino acid levels over night while you sleep..
whey runs through your system in 1 hour.. chicken/turkey/fish 3-4 hours, casein 7-8hrs , lean beef 18hrs..
so if you sleep 8-9 hrs a night and you have anything but the casein or lean beef your body will very likely go catabolic.. that's precious muscle baby.. hang on to it..




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