TweetIt'll fizzle out after about 2 months when they realize this is a process and working out will not have you looking like you belong in a magazine that quickly. And many try to make the drastic change in diet all at once and this is why so many fail. If they would make subtle changes in steps it would be easier on them and many more would be able to stick to it. It's just too drastic of a change for most to do everything all at once.