RICHARD L. ATKINSON is Professor of Internal Medicine, Department of Nutritional Science at the University of Wisconsin-Madison. He was the Associate Chief of Staff for Research and Development at the Veterans' Affairs Medical Center in Hampton, Virginia. Concurrently, Dr. Atkinson was Professor of Internal Medicine and Chief of the Division of Clinical Nutrition at the Eastern Virginia Medical School in Norfolk, Virginia. He served 4 years in the military at Walter Reed Army Hospital in Washington, D.C. and the U.S. Army Hospital in Fort Campbell, Kentucky. Dr. Atkinson is an editorial board member for the Journal of Nutrition, a medical advisory board member for Obesity Update, and a contributing editor for Nutrition Reviews. He is a member of the American Association for the Advancement of Science, American Institute of Nutrition, and Endocrine Society; he is a fellow of the American College of Nutrition and American College of Physicians. Dr. Atkinson holds a B.A. from the Virginia Military Institute in Lexington and M.D. from the Medical College of Virginia in Richmond, where he served his internship. He then completed his residency at Harbor General Hospital in Torrance, California.

WILLIAM R. BEISEL is Adjunct Professor in the Department of Molecular Microbiology and Immunology at the Johns Hopkins School of Hygiene and Public Health. He held several positions at the U.S. Army Medical Research Institute for Infectious Diseases at Fort Detrick, Maryland, including in turn, Chief of the Physical Sciences Division, Scientific Advisor, and Deputy for Science. He then became Special Assistant for Biotechnology to the Surgeon General. After serving in the U.S. military during the Korean War, Dr. Beisel was the Chief of Medicine at the U.S. Army Hospital in Ft. Leonard Wood, Missouri, before becoming the Chief of the Department of Metabolism at the Walter Reed Army Hospital. He was awarded a Commendation Ribbon, Bronze Star for the Korean War, Hoff Gold Medal at the Walter Reed Army Institute of Research, B. L. Cohen Award of the American Society for Microbiology, and Department of Army Decoration for Exceptional Civilian Service. He was named a diplomate of the American Board of Internal Medicine and a fellow of the American College of Physicians. In addition to his many professional memberships, Dr. Beisel is a Clinical Nutrition contributing editor and Journal of Nutritional Immunology editor. He received his A.B. from Muhlenberg College in Allentown, Pennsylvania, and M.D. from the Indiana University School of Medicine.

GAIL E. BUTTERFIELD is Director of Nutrition Research, Palo Alto Veterans Affairs Health Care System in California. Concurrently, she is Lecturer in the Department of Medicine, Stanford University Medical School, and Visiting Assistant Professor in the Department of Human Biology, Stanford University. Her previous academic appointments were at the University of California-Berkeley. Dr. Butterfield belongs to the American