MET-Rx BCAA 2200 180 Capsules Branched Chain Amino Acids (BCAAs) are essential amino acids that must be consumed from the diet as they cannot be produced by the body. BCAA's are important for anyone who has an active lifestyle as they make up a large percentage of the amino acids found in muscle composition. MET-Rx BCAA 2200 180 Capsules Extra Info Vitamin E contributes to the protection of cells against oxidative stress MET-Rx BCAA 2200 180 Capsules Branched Chain Amino Acids (BCAAs) are essential amino acids that must be consumed from the diet as they cannot be produced by the body. BCAA's are important for anyone who has an active lifestyle as they make up a large percentage of the amino acids found in muscle composition. MET-Rx BCAA 2200 180 Capsules Extra Info Vitamin E contributes to the protection of cells against oxidative stress