BCAA Xtra Drink is a functional sports drink containing BCAA amino acids. BCAA Xtra contains branched chain amino acids (L-leucine, L-isoleucine, L-valine). BCAA amino acids constitute about 35% of exogenous amino acids necessary to build muscle protein, and nearly 50% of amino acids that must be supplied with food. Every tin of BCAA Xtra Drink contains 4 000 mg of branched chain amino acids in the optimal proportion: Leu/Iso/Val = 2:1:1. The BCAA Xtra supplement is recommended during any excessive physical eort as a dietary supplement improving overall quality of strength training and regular recreation.