Synopsis The creators of this diet program criticize conventional assumptions that calories and high-fat foods are responsible for excessive body fat. Rather, they assert that insulin production and sugar are the primary causes for gaining and failing to lose weight. Their plan--supplied with simple recipes for fast-paced lifestyles--provides a new approach to dieting. As readers learn how to eliminate sugar from their diets, they are permitted to enjoy high-fat foods that are forbidden by other weight-loss programs.