After exercise, the body uses protein to repair and rebuild muscle fibers that were damaged during workouts. This process, known as muscle protein synthesis, is crucial for recovery and overall strength gains. Adequate protein intake helps facilitate the creation of new muscle tissue, supports immune function, and maintains optimal nutritional balance. Consuming protein-rich foods or supplements shortly after exercising can enhance recovery, improve muscle growth, and help minimize muscle soreness, making it an essential component of any post-workout regimen.