Traditional measures like BMI fall short in capturing the nuances of metabolic health. Body composition analysis — including fat mass, visceral fat, and muscle mass — offers physicians and dietitians a more precise tool for managing chronic conditions such as obesity, diabetes, cardiovascular disease, and even cancer. In this article, Dr. Nicolette Natale explores how advanced methods like BIA, DXA, and CT can support more personalized care plans, improve patient outcomes, and reshape the role of body composition in chronic disease management.