Amino acids are the building blocks of proteins crucial for athletic performance. They support the growth and repair of muscle tissue, which is particularly important after intense workouts. Certain amino acids, such as branched-chain amino acids (BCAAs), can enhance exercise endurance and reduce muscle soreness. Additionally, they play a role in synthesizing hormones and enzymes, contributing to metabolism and energy production. Proper amino acid intake can therefore enhance recovery and improve overall athletic performance, making them vital for any athlete's diet.