Optimum Nutrition, BCAA, 1000 mg, 400 capsProduct Description BCAAs, or branched chain amino acids, are essential nutrients that the body obtains from proteins found in food. They include leucine, isoleucine, and valine, three amino acids that are crucial for muscle growth and recovery. Optimum Nutrition's BCAA capsules are designed to support muscle recovery and promote protein synthesis. These capsules are easy to consume and can be taken before, during, or after workouts to help maintain