The branched-chain amino acids Leucine, Iso-Leucine, and Valine play a vital role in aerobic and anaerobic performance, improving endurance, boosting the immune system, preserving lean muscle mass, promoting muscle growth, and decreasing muscle soreness after exercise. These essential amino acids are not made in the body and must be consumed in our diets. It is ideal for athletes, people on restrictive diets, or anyone engaging in prolonged activity or exercise. It fuels our bodies!