Contributes to muscle building. BCAA 1000 will whirl around your muscles with 3 branched amino acids: L-Leucine, L-Valine and L-Isoleucine. This power combination of amino acids improves the nitrogen balance in the muscle. These 3 types of amino acids are acids that are unfortunately not produced by the body itself - but nevertheless contribute extremely to muscle building. Taking BCAA 1000 capsules from Optimum Nutrition releases a very strong anabolic effect. You will experience gigantic advances in muscle growth as well as strength. The product pushes you into a real training frenzy. Forgotten are times of muscle failure and premature set-trips the age of strength, strength endurance and galactic muscle has caught up with them. With these ingredients (2 capsules per serving) you will experience your true miracle: L-leucine 500 mg, L-isoleucine 250 mg and L-valine 250 mg.