Branched-Chain Amino Acids (BCAAs)—L-Leucine, L-Isoleucine, and L-Valine—are known for their anabolic and anti-catabolic benefits. Consumed in a 2:1:1 ratio before or during endurance training, they help protect muscle tissue from breakdown. When taken after strength workouts, BCAAs help kick-start protein synthesis, supporting faster recovery and muscle growth.