The Branched Chain Amino Acids Leucine, Isoleucine and Valine are valued for their anabolic and anti-catabolic properties. Used in the 2:1:1 ratio before and/ or during endurance exercise, they may help spare muscle tissue. Used after strength training, BCAAs help kick-start protein synthesis which plays and important role in muscle growth. We included 5 grams of glutamine because this conditionally essential amino acid may help support recovery after intense excercise.