Dietetary supplements can contribute to athletic performance by providing essential nutrients that support energy production, recovery, and overall health. Common supplements include protein powders, creatine, and branched-chain amino acids (BCAAs), which can enhance muscle recovery, reduce soreness, and improve endurance. These supplements can help fill dietary gaps and ensure athletes are meeting nutritional needs that support training demands. However, it is vital to approach supplementation with caution, aiming for a balanced diet as the primary source of nutrients.