1. From the Departments of Nutrition (SEC, ELG, LWD, WCW, and EBR) and Epidemiology (ELG, SEH, WCW, and EBR), Harvard School of Public Health, Boston, MA; the Department of Nutrition, School of Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC (SHZ); and the Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical