Casein is milk protein that make up 80% of the protein content in cow’s milk and 40% in human milk. This kind of protein what is called a complete protein since it contains the essential amino acids (including the branched chain amino acids or BCAA’s) which the body cannot synthesize on its’ own and thus needs to have supplied through diet. Casein protein can be used a single source of protein but also in conjunction with another source i.e. whey protein. Sports people and fitness enthusiasts can indeed reap the benefits of casein protein because of its’ ability to form a sort of gel- or clot-like substance in the stomach and thus providing not only a greatly satiating effect but also allows for a slower, sustained release of amino acids to the blood stream. This release can last up to several hours, which is why athletes often use casein as a protein source before bedtime – the time of the day where the body is recovering at its’ highest. Have a look at our range of high quality, great tasting casein protein supplements.