Common supplements used to enhance performance in athletes include creatine, beta-alanine, and branched-chain amino acids (BCAAs). Creatine is popular for improving strength and high-intensity exercise performance, while beta-alanine can help delay muscle fatigue. BCAAs support muscle recovery and reduce soreness after workouts. It's essential for athletes to consult with healthcare professionals to ensure safe and effective use of supplements based on individual needs. Proper supplementation should complement, not replace, a balanced diet for optimal performance.