The prevalence of obesity in the U.S. could rise sharply under a new definition of the condition released earlier this year by the Lancet Diabetes and Endocrinology Commission, according to research ...

For years, medical experts have defined obesity primarily based on body mass index, which measures stored fat by calculating height and weight, to determine a person’s health risks. Major public ...

An international commission made the case for focusing on body fat quantity and the illnesses people experience. By Gina Kolata Obesity should be assessed in a way that goes beyond the standard ...