The foods included in the diet are chosen for a reason. Each food has a relatively low calorie count, as well as having protein, carbs and fats that interact and promote fat-burning action. These food combinations jumpstart your body's fat-scorching power and speed up your metabolism so the pounds melt away. Drinking extra water while on the diet will help to ensure that this happens. The water helps you feel full without having any calories, while it also helps to flush the nasty toxins out of your system. Those toxins are the same toxins that keep those stubborn extra pounds hanging around.