It has the power to get anyone back down to normal weight. From there they need to make adjustments to not get overweight again. Which will be easier after such

It has the power to get anyone back down to normal weight. From there they need to make adjustments to not get overweight again. Which will be easier after such a diet, since the habit of eating is already broken, taste buds have reset and the body won't crave energy to maintain his overweight level.