We move on to a new diet from reader's digest that says it can help people lose up to 30 pounds in three weeks. Abc's abbie boudreau has the story. Reporter: There was the grapefruit diet, and the all... See More
We move on to a new diet from reader's digest that says it can help people lose up to 30 pounds in three weeks. Abc's abbie boudreau has the story. Reporter: There was the grapefruit diet, and the all greens diet and who can forget the baby food diet? It's not a fad, you're not eliminating groups. It's superfast weight loss. Reporter: The diet is moved into four phases. You take off five to eight pounds. At the end of the three weeks, they're taking off 13 pounds up to 26 pounds. Reporter: Phase one, you eat mostly soups and shakes and incorporate foods that taste good. I love the almonds, the wine. Yogurt. Reporter: We heard red wine is good for the heart. But also for losing weight, same thing with dark chocolate. Phase two, liean and green. So it's the micronutrients. Reporter: It diet incorporates all the weight loss into one simple diet. The book available now is full of easy tips for quick exercises. I will point out we are wearing heels. Yeah, just dip. Reporter: After three weeks and presumably pounds lighter, the third and final phase, maintenance. Incorporate fat-releasing foods into one meal. Reporter: And there's one more part, laughter. When we're stressed we have cortisone, and when you laugh, you hold on to fat. Reporter: Laughter may be the best medicine for some, although dieting on chocolate and red wine sounds pretty sweet for me. For "good morning america," abbie boudreau, los angeles.
This transcript has been automatically generated and may not be 100% accurate.