Jennie Brand-Miller, Ph.D., one of the world's foremost authorities on carbohydrates and the glycemic index, has championed the GI approach to nutrition for more than 20 years. Professor of Nutrition at the University of Sydney and the President of the Nutrition Society of Australia, Brand-Miller manages a GI food-labeling program in Australia (www.gisymbol.com.au) with Diabetes Australia and the Juvenile Diabetes Research Foundation to ensure that claims about the GI are scientifically correct and applied only to nutritious foods. Winner of Australia's prestigious ATSE Clunies Ross Award in 2004 for her commitment to advancing science and technology, Brand-Miller is one of the world's most in-demand speakers on the GI and her laboratory at the University of Sydney is the world's foremost GI-testing center. Kaye Foster-Powell, M. Nutr & Diet, an accredited dietitian-nutritionist with extensive experience in diabetes management, counsels hundreds of people a year on how to improve their health and well-being and reduce their risk of diabetic complications through a low-GI diet. She is the lead author of the authoritative tables of GI and glycemic load values published in the American Journal of Clinical Nutrition. Kate Marsh, RD, CDE, is a practicing dietitian and diabetes educator in Sydney, Australia. Philippa Sandall is a writer and editor who specializes in the areas of food, health, and nutrition and has been involved in the Glucose Revolution series since its inception in 1996.