1. Pennington Biomedical Research Center (Z.G., X.Z., A.Z., M.L., J.Y.), Louisiana State University, Baton Rouge, Louisiana 70808
2. Western Human Nutrition Research Center and Department of Nutrition (D.H.), University of California, Davis, California 95616
3. Diabetes Unit (M.J.Q.), National Center for Complementary and Alternative Medicine, National Institutes of Health, Bethesda, Maryland 20892-1755