WHEY IS THE PREFERRED PROTEIN SOURCE IN SPORTS AND BODYBUILDING NUTRITIONBECAUSE IT PROVIDES A SUPERIOR SOURCE OF BRANCHED CHAIN AMINO ACIDS MADEUP OF LEUCINE ISOLEUCINE AND VALINE WHICH ARE IMPORTANT FOR THEMAINTENANCE OF MUSCLE TISSUE. UNLIKE SOME OTHER INCOMPLETE PROTEINSOURCES MET-Rx NATURAL WHEY PROTEIN CONTAINS ALL OF THE ESSENTIAL AMINOACIDS REQUIRED FOR SUPPORTING LEAN MUSCLE.Other products from HerbsPro