Easy-mixing, watermelon-flavored blend of Leucine, Isoleucine, and Valine branched-chain amino acids, optimized with Glutamine and B-Vitamins. Description Leucine, Isoleucine, and Valine are three essential amino acids with a unique branched-chain structure. The BCAAs are the only amino acids used by the mitochondria to produce energy (Haas & Mela-Riker). They comprise about one-third of the protein content of muscle tissue and are used preferentially by muscle tissue for energy production. BCAA’s are a balanced blend of Leucine, Isoleucine, and Valine that is synergized with Vitamins B1, B3, B5, and glutamine for enhanced utilization. It mixes easily in water and has a delicious natural watermelon flavor.