There are 4 cycle, and each last 17 days.
This diet look similar to southbeach, however, you can eat a certain fruit that low in sugar. The first cycle you have to cut out all starchy carbs. Eat unlimited lean protein and a lot of salad and there is a list of vegi and fruit that you can eat. After that you move to the second cycle and you can introduce a small amount of whole grain carb to your diet. The fourth cycle is the maintaince.
Check out the book at your local library.
After read all book about dieting, I think you just have to work out, cut down the portion and choose healthier food (filling, nutritious, and low in cals) in order to lose. There is no magic diet.