Body fat percentage and BMI serve different purposes in assessing health. While BMI (Body Mass Index) measures overall body mass based on height and weight, it does not differentiate between fat and muscle. Consequently, athletes with high muscle mass may be misclassified as overweight or obese. In contrast, body fat percentage directly indicates the proportion of fat versus lean mass in the body, providing a clearer picture of body composition. This distinction is essential for developing personalized fitness strategies, as body fat percentage is a better indicator of health risks and fitness goals.