Accurate assessment of body composition in obese individuals is essential for evaluating weight loss interventions, yet standard whole-body DEXA scanning is often limited by size constraints. This study compared whole-body DEXA, half-body DEXA, and bioelectrical impedance analysis (BIA) in 98 obese adults. Half-body DEXA produced results closely matching whole-body measurements, with only minor, clinically insignificant differences, while BIA showed slightly greater variation. These findings suggest that half-body DEXA is a practical alternative when full scans are not feasible, and BIA remains a reasonable option when DEXA is unavailable.
