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Yo-Yo Dieting May Pose Serious Risks For Heart Patients

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An increasing number of overweight Americans have lost the motivation to diet. enisaksoy/Getty Images hide caption

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enisaksoy/Getty Images

Is Dieting Passe? Study Finds Fewer Overweight People Try To Lose Weight

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Which eating plan will work with your lifestyle and help you lose weight? U.S.News & World Report has plenty of advice with its latest diet rankings. Maximilian Stock Ltd./Getty Images hide caption

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Maximilian Stock Ltd./Getty Images

Oprah Winfrey arrives at the 87th Academy Awards nominees luncheon at the Beverly Hilton Hotel on Monday, Feb. 2, 2015, in Beverly Hills, Calif. Jordan Strauss/Invision/AP hide caption

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Jordan Strauss/Invision/AP

A meta-analysis found that people on vegetarian diets lost around 4.4 pounds more than the control group (who had no change in diet), while those who went vegan dropped 5.5 pounds more. Marcus Butt/Ikon Images/Corbis hide caption

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Marcus Butt/Ikon Images/Corbis

The Mediterranean-like DASH and the plant-centric Ornish eating plan topped this year's rankings of diets by a panel assembled by U.S. News & World Report. Gillian Blease/Getty Images/Ikon Images hide caption

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Gillian Blease/Getty Images/Ikon Images

The 7-Day Color Diet: An attempt to get people to eat more fruits and vegetables, this diet requires followers to eat foods of just a single color each day. It ends with a day in which you "eat the rainbow," so to speak. Here's Gonot's cheeky take on orange day. Stephanie Gonot/Courtesy of the photographer hide caption

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Stephanie Gonot/Courtesy of the photographer