A branched-chain amino acid (BCAA) is an amino acid having an aliphatic side-chain with Branched-chain amino acids (BCAAs) refer to a group of essential amino acids that include leucine, isoleucine, and valine. Unlike other amino acids, BCAAs are metabolized in the muscles rather than the liver, making them crucial for protein synthesis, muscle growth, and overall energy production. As essential components of the human diet, BCAAs cannot be produced by the body and must be obtained through food or supplements. Their popularity in sports nutrition and fitness industries stems from their role in supporting muscle health, enhancing exercise performance, and aiding in post-exercise recovery. BCAAs are commonly found in protein-rich foods, and their isolated form is often included in dietary supplements, energy drinks, and protein powders to meet the needs of individuals seeking to optimize muscle function and maintain overall well-being.