Skip to main content

Somatic Composition

Meaning

Somatic Composition refers to the quantitative breakdown of the body’s physical mass into its constituent compartments, most commonly fat mass, fat-free mass (including muscle, bone, and water), and the critically important visceral fat. This metric is a more sophisticated and clinically relevant indicator of health status and metabolic risk than simple body weight or Body Mass Index (BMI). Optimal somatic composition, characterized by high lean mass and low visceral fat, is a critical predictor of metabolic health, functional reserve, and longevity.