1. From the Growth and Obesity, Developmental Endocrinology Branch, National Institute of Child Health and Human Development (NICHD) (MCM, MJMcD, SZY, MT-K, KRT, and JAY); the Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) (SZY); the Nutrition Department, Hatfield Clinical Research Center (MS); and the Phoenix Epidemiology and C