Obesity and Metabolism Research Unit, USDA, Agricultural Research Service, Western Human Nutrition Research Center, Davis, CA; Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The University of California Davis Medical Center, Sacramento, CA; and Department of Nutrition. Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The University of California Davis Medical Center, Sacramento, CA; and. Obesity and Metabolism Research Unit, USDA, Agricultural Research Service, Western Human Nutrition Research Center, Davis, CA; Department of Nutrition. West Coast Metabolomics Center, and Genome Center, University of California, Davis, Davis, CA. Obesity and Metabolism Research Unit, USDA, Agricultural Research Service, Western Human Nutrition Research Center, Davis, CA; Department of Nutrition, shadams@uams.edu.