A higher protein intake contributes significantly to an athlete's diet by facilitating muscle repair and growth after intense training. Consuming adequate protein is essential for synthesizing muscle protein, which helps in recovery and overall performance. Protein also helps regulate appetite, promoting satiety and aiding weight management, important for athletes maintaining their performance weight. Furthermore, it can enhance metabolic rate and improve body composition by increasing lean muscle mass. In essence, protein is a crucial macronutrient that supports optimal recovery and enhances athletic performance.