BCAA Fuel is a powerful combination of the brached chain amino acids (BCAA) L-leucine, L-isoleucine and L-valine providing 2000mg in every serving. These essential amino acids cannot be made by the body and are rapidly oxidized during exercise so supplemental BCAA's can play a key role in muscle growth and recuperation. The results is increased nitrogen retention and the protein synthesis necessary to build muscle while preventing muscle tissue breakdown.