Body composition can be accurately assessed using methods like dual-energy X-ray absorptiometry (DXA), bioelectrical impedance analysis, and skinfold measurements. DXA is a highly accurate imaging technique that provides detailed information about bone mineral density, fat, and lean mass. Bioelectrical impedance analyzes body composition based on resistance to electrical flow, providing a quick and non-invasive assessment. Skinfold measurements involve calipers to pinch and measure the thickness of skinfolds, estimating body fat percentage. Each method has its benefits, and choosing the right one depends on factors like accessibility and precision required.