Researchers in Italy compared the tool to scans which provide an analysis of fat, muscle and bone in the body
The Body Mass Index (BMI) system may be misdiagnosing people as overweight or obese, according to a study.
Researchers in Italy compared the tool – which measures body fat based on height and weight – to scans providing an analysis of fat, muscle, and bone.
The study, published in the journal Nutrients, involved 1,351 adults referred to the University of Verona’s Department of Neurosciences, Biomedicine and Movement Sciences.



So if you look at the top IPF powerlifters (excluding the uncapped weight class), who are more or less the most heavily muscled group of people in the world who are regularly drug tested, they tend to be a few notches into the “overweight” category.
As I understand the early rungs of “overweight” are not particularly associated with disease. It’s just where risk factors begin ramping up a bit on a population level, but it’s understood that active muscled people who land there have better health outcomes than lighter weight sedentary people