Many popular miracle diet plans rely on a single gimmick - all protein, all liquid, all fruit, no sugar. Inevitably, as willpower and self-esteem run down, the pounds creep back. But, according to the author's two decades of personal experience and scientific research, most of these single-strategy regimens include up to a dozen insidious weight-gain triggers, resulting in damaged metabolisms and biochemical imbalances. Here is her simple nutritional program for maintaining your ideal weight.