The idea behind a Detox Diet is to purify and purge your body of all the "bad" stuff (for a short time for example 7 to 10 days). To do this you may temporarily give up certain foods and be restricted to things like raw vegetables, fruit, water and yoghurt. Although celebrities like Carol Vorderman promote Detox Diets as a way to feel better there is still concern about whether they work and whether you're really are being detoxified.