GOLD® 100% Premium Casein helps keep your muscles fed for over 7 hours with a rich pool of slow-releasing amino acids, the foundation of lean muscle. This product is made with 100% calcium caseinate, a milk protein naturally rich in glutamine and branched chain amino acids (BCAA) with unique digestive properties. Unlike whey protein, casein remains in your stomach longer during digestion, slowly releasing amino acids into your bloodstream and gradually feeding your muscles. Don’t take chances with your results – get the GOLD Status in Sports Nutrition.