For a precise and accurate measurement of your body fat and bone density The FDA approved Dual-energy absorptiometry (DEXA) is the most accurate method for body composition. It quantifies your lean, fat, and bone mass (to identify osteoporosis), and body fat including visceral fat (which correlates to your risk for hormonal imbalances and disease). The test is simple, as you lay down in our DEXA body scan machine for 5 minutes, and significantly more precise than other methods (including BMI, InBody, BodPod, and hydrostatic weighing).