By now, you've heard of (and maybe tried) them all: the low-carb diet, the grapefruit diet, the miracle diet . . . the list goes on and on. Fad diets may promise a quick fix, but few deliver lasting results. If you're like millions of other Americans, you're still struggling to lose weight and get in shape--without harming your long-term health in the process. It's time to leave behind the one-size-fits-all approach to dieting. Now, the American...