100% Whey Protein Professional LS is an excellent quality whey protein blend with whey concentrate and whey isolate. LS is a lightly sweetened version with less intense flavoring. Dietary proteins are the source of nitrogen and indispensable amino acids, which the body requires for tissue growth and maintenance. Therefore 100% Whey Protein Professional LS contributes to the growth and maintenance of muscle mass, and also to the maintenance of normal bones Whey protein from milk is a so-called complete protein, because it provides the body with all the necessary types of amino acids, including the 9 amino acids the body cannot synthesize and must be supplied by the diet (i.e. Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, Valine). 100% Whey Protein Professional LS has more added components: an "Amino Acid Matrix" that provides popular extra amino acids, namely L-Leucine, L-Glutamine and Taurine. Also, the digestive enzyme blend of Papain and Bromelain is included in our formula!