To meet the needs of athletes, Ultimate Nutrition has designed 100% Prostar Whey Protein to include all the essential and nonessential amino acids to build the muscle after intense exercise of both short and long duration. It is a customized blend of all the nutrients, including immune enhancing factors from whey protein by a specialized process. Since exercise can take a toll on the immune system, 100% Prostar Whey Protein is the nutritional supplement of choice for those who lead an active lifestyle. 100% Prostar Whey Protein is not just for the athlete however. It supports the muscle maintenance, buildup and toning among individuals who are merely 'weekend warriors.' Ultimate Nutrition‘s 100% Prostar Whey Protein is, indeed, the nutrition for the champions!