body composition changes and then fat becomes preferentially lost (Academy of Nutrition and Dietetics, 2012). However, weight loss is a stronger predictor of death than loss of lean body mass, and baseline BMI is important; people with a baseline BMI 25 have a much lower risk of dying than those with a baseline BMI of 25, even though 25 is the beginning of the “overweight” range (Mangili et al., 2006).