Amino Acids are the building blocks of protein and are needed to grow new muscle tissue. Amino acids can aid in new muscle growth and repair and recovery from intense training. There are 22 amino acids in the body. Nine of these ( Essential Amino Acids) can not be made by the body itself and therefore must come from a food or supplement source. Three of these nine are Leucine, IsoLeucine and Valine which are referred to as Branched Chain Amino Acids (BCAA's). BCAA's are unique in that they are metabolized in the muscle rather than in the liver. Supplementation with Amino Acids can aid in preserving and building lean muscle.