Dieting is about weight loss, whereas fat freezing is about body shaping. The number and distribution of fat cells in the adult human body generally do not change. If you gain or lose weight, those cells grow and shrink. Problem areas occur when there is a high concentration of fat cells in a particular area. Even if you are at a healthy weight and generally slim, that area still bulges. CoolSculpting works by reducing the number of fat cells in targeted locations, effectively re-shaping the body.