Body composition significantly influences overall health and fitness by affecting metabolic rates, hormonal balance, and physical performance. A higher percentage of lean muscle mass often correlates with better metabolic health, while excess body fat is linked to various health issues, including cardiovascular disease and diabetes. Maintaining a healthy body composition can enhance physical performance, reduce injury risk, and contribute to overall well-being. Thus, focusing on achieving and maintaining an optimal body composition is crucial for individuals seeking to improve their health and fitness.