Elite Casein helps to keep your muscles supplied with a steady stream of amino acids, the building blocks of muscle protein. SUSTAINEDABSORBING 100% MICELLAR CASEIN Casein is a unique protein derived from milk that breaks down more slowly in the digestive system which increases satiety and provides a slower release of muscle-building amino acids. So, if your goal is to build muscle or avoid muscle protein breakdown in between meals or during sleep, Elite Casein is an excellent protein choice. Elite Casein uses a cross-flow microfiltration processing to help preserve the natural state of casein protein’s important muscle building properties. Elite Casein flavours mix easily for a smooth and delicious taste.