Maple Syrup and Charcoal?
Hi, this is Dan with Newshour today.
The campaign group Sense About Science says that this year there has been a big rise in dubious theories about how the body works.
Cheryl Cole told the world about her and how it gave her extra energy.
Other unusual ideas about boosting bodily functions have prompted strange diets, from Naomi Campbell's maple syrup, lemon and pepper regime to Girls Aloud's Sarah Harding sprinkling charcoal over her meals.
Sense About Science says there's the body does it naturally, and there are no shortcuts to good food and enough exercise.
Have you tried a 'celebrity diet?' How did you get on?
Or do you think they're all nonsense?