Whey Protein Complex Powdered Drink Mix EM 17 Grams of High Quality Protein Supports Muscle Recovery Growth* High Concentration of Essential Amino Acids GNC Pro Performance Whey Protein Complex features 17 grams of protein from a blend of quality sources. The Benefits of Protein GNC Pro Performance Whey Protein Complex combines protein from whey, soy, caseinate and egg to provide you a with a full spectrum of amino acids. Protein serves as a dietary source of amino acids. The body needs amino acids to build the various proteins used in the growth, repair and maintenance of body tissues such as skin, bones and muscles. More specifically, it supplies branched chain amino acids to athletes. BCAA are essential amino acids, which are part of muscle protein. They may preserve muscle glycogen stores and help reduce the amount of protein breakdown during exercise. Protein Consump