DEXA is the gold standard in measuring body composition and is accurate to within 1%. It is significantly more accurate than Bodpod, underwater weighing, bioelectrical impedance and skin-fold (caliper) measurements.

DEXA stands for Dual Energy X-ray Absorptiometry.
DEXA body scans deliver a 3-component assessment which includes fat, lean muscle and bone. The scan also gives you your overall body fat percentage to indicate whether you are within the healthy range for your age.