BCAAs (Branched-Chain Amino Acids) are a group of three essential amino acids—leucine, isoleucine, and valine—that play a crucial role in muscle protein synthesis and overall muscle recovery. Unlike other amino acids, BCAAs are unique because they are metabolized directly in the muscles rather than the liver, making them particularly valuable for athletes, bodybuilders, and anyone looking to support muscle health during intense physical activity.

BCAAs are considered "essential" because the body cannot produce them on its own, meaning they must be obtained through food or supplements. They are found in protein-rich foods like meat, eggs, and dairy products, but many people turn to BCAA supplements for a more convenient and targeted way to enhance performance, prevent muscle breakdown, and improve recovery.