Brached Chain Amino acids or BCAA's play a vital role in muscle building and muscle mass preservation by being directly metabolized in the muscle. Being essential amino acids you can only procure them through your diet. Daily variations in your diet cannot ensure a steady intake of the required amount of BCAA's to help the muscle building process. Supplementing your diet with British Nutritions BCAA helps you meet your need for this crucial nutrient in the right ratio to boost your body's muscle building capabilities.\n