To fight abdominal fat, you need protein. High-protein diets make you feel fuller longer, increase your metabolic rate, and help you comfortably decrease your calorie intake.
Excellent sources of lean protein include skinless chicken, 90% ground beef, lentils, fish, walnuts and nut butters, pork and eggs. Obviously, the way to prepare them counts.
Frying them or smothering them in sauces is counterproductive. Each of these has huge health benefits, such as healthy oils, so eating them has a double benefit, including the next assistant in combating abdominal fat.