"body fatness" refers to the amount of fat present in a person's body. It is a measurement or indication of the overall level of fat accumulation or weight gain. Full definition
In our analysis, the association of sugar intake and recurrent depression was attenuated by measures of body fatness in participants without doctor diagnosis of depression at baseline supporting the hypothesis of an indirect effect mediated by adiposity26, 27,28 driving the association of sugar intake and recurrent depression. (nature.com)
They found that B.M.I. value alone misclassified the degree of body fatness in 41 percent of the patients. (nytimes.com)
(1) Impact of exercise intensity on body fatness and skeletal muscle metabolism. (theartofabs.com)