Body Composition

Body composition assessment goes beyond BMI with growing evidence-based methods. The session covers DXA body composition as the clinical reference standard, BIA in clinical practice and its limitations, MRI-based body composition for research, visceral vs subcutaneous fat differential effects, ectopic fat accumulation patterns, and the GLP-1 era preservation-of-lean-mass focus. Discussion addresses bioimpedance in fluid shifts, ASM/BMI ratio for sarcopenic obesity, waist circumference as a clinical proxy, the role of body composition in cardiometabolic risk beyond BMI, and emerging methods including air-displacement plethysmography (Bod Pod), DEXA, and quantitative MRI.