Anyone who is into celebrity gossip and pop culture gossip can tell you that 9 times out of 10 when a celebrity loses a bunch of weight it is usually because of a hardcore drug habit. Promoting fad diets is not only a great save their PR uses for damage control, but also a great way to make extra money "promoting" the newest fad diet. Don't be fooled by their "amazing weight loss story" because it is usually the result of damage control.