Elizabeth Hurley claims that she only eats one meal a day and is often hungry. I’m guessing she’s pretty cranky too — I know I would be on so little food. (Source: ABC News)

Reality Check: A food-free diet might have you shedding pounds initially, but Ferrin says it’s terrible for you in the long term. “Once your body goes into an extreme caloric restriction, or ‘starvation mode,’ the reverse process of weight loss takes place. This means that your body will actually store fat in anticipation of starvation.” The moral here: don’t starve yourself, OK?