1. Obesity and Metabolism Research Unit, United States Department of Agriculture-Agricultural Research Service Western Human Nutrition Research Center, Davis, California;
2. Graduate Group in Nutritional Biology and Department of Nutrition, University of California, Davis, California;
3. Arkansas Children's Nutrition Center and Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
4. Division of Nephrology, University of California, Irvine, California;
5. Department of Food Science and Technology, University of California, Davis, California; and