First, congratulations on your loss and determination to be healthier.
I do agree with Unident though, fad diets are horrible! They not only burn off water and muscle (as well as fat) but they are not always 'balanced' enough to meet all your nutritional needs. Extreme restricting can cause hair loss, skin problems, mental health problems and even heart beat irregularities.
As some one (a short someone too) that started with almost 200lbs to lose I totally understand the attraction to something like this. It's just not worth the risk though, and it's not maintainable. Once you're 'off' the diet, fat comes back. Muscle is a lot harder to gain back, a healthy lifestyle change is hard at first, but it's a downhill thing, gets easier and easier.