Panel Members: J. Michael McGinnis, M.D., M.P.P., (Panel and Conference, Chairperson), Senior Scholar, Institute of Medicine, The National Academies, Washington, DC; Diane F. Birt, Ph.D., Distinguished Professor, Department of Food Science and Human Nutrition, Director, Center for Research on Botanical, Dietary Supplements, College of Agriculture and College of Human Sciences, Iowa State University, Ames, Iowa; Patsy M. Brannon, Ph.D., R.D., Professor, Division of Nutritional Sciences, Cornell University, Ithaca, New York; Raymond J. Carroll, Ph.D., Distinguished Professor of Statistics, Professor of Nutrition and Toxicology, Department of Statistics, Texas A&M University, College Station, Texas; Robert D. Gibbons, Ph.D., Director, Center for Health Statistics, Professor of Biostatistics and Psychiatry, University of Illinois at Chicago, Chicago, Illinois; William R. Hazzard, M.D., Professor, Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Chief, Geriatrics and Extended Care, VA Puget Sound Health Care System, Seattle, Washington; Douglas B. Kamerow, M.D., M.P.H., U.S. Editor, BMJ, Professor of Clinical Family Medicine, Georgetown University, Chief Scientist, Health, Social, and Economics Research, RTI International, Washington, DC; Bernard Levin, M.D., Professor of Medicine, Vice President for Cancer Prevention and Population Sciences, University of Texas M.D., Anderson Cancer Center, Houston, Texas; James M. Ntambi, Ph.D., Steenbock Professor, Departments of Biochemistry and Nutritional Sciences, University of Wisconsin–Madison, Madison, Wisconsin; Nigel Paneth, M.D., M.P.H., Professor of Epidemiology, Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, Michigan; Douglas Rogers, M.D., Head, Section of Pediatric and Adolescent Endocrinology, The Cleveland Clinic Cleveland, Ohio; Audrey F. Saftlas, Ph.D., M.P.H., Professor, Department of Epidemiology, The University of Iowa, College of Public Health, Iowa City, Iowa; William Vaughan, Senior Policy Analyst Consumer's Union, Washington, DC