First – overeating, and the second – malnutrition. Let’s discuss a bit each of them. I will also offer you some rules for fast and effective fat burning. Overeating means that you absorb more calories than your body can use. As you might guess, the remaining part of the energy, the extra calories are deposited in the reserve, so-called fats. The body stores any excess fat to use it in case of unexpected food shortage.