Definition: Body composition refers to the proportion of fat and fat-free mass in the body. Those with a higher proportion of fat-free mass to a lower proportion of body fat have a healthy body composition.
There are several different ways to assess your body composition, and body fat percentage. These include measurement with calipers and tests such as underwater body fat test, the BodPod, DEXA Scan, and bioletrical impedence.
Someone with a body composition that includes excessive body fat is more likely to suffer from weight-related health problems.