Body fat measurement remains as the most sensitive and accurate method of assessing an individual’s level of risk associated with increased body fat. Unlike body mass index measurement (BMI), body fat measurement provides an accurate picture of the amount and distribution of body fat. Body mass index measurement uses body weight to determine if a person is overweight or not. This can sometimes be inaccurate. For example, individuals who carry a large muscle mass may have a higher than normal body mass index. However, this is not an accurate reflection of their overall health.