The 47-year-old is said to be following a strict detox diet called the master cleanse diet - which Beyoncé is also a fan of. It's also thought Demi's spent thousands of pounds on plastic surgery.
Find your perfect diet with our quiz
- Healthy cereal: The best and worst cereals revealed
- Top natural hay fever remedies
- Calories in summer drinks: The best and worst for your diet
- Tested: Best and worst sun creams
- Best and worst chocolate bars for your diet
- Biscuits: The best and worst revealed
- Yogurts: best and worst for your diet revealed!
- Best bob hairstyles
- Breads: Best and worst loaves revealed