Carbohydrate intake must be reduced
It is a known fact that the fat burning process of the stomach is slowed down by carbohydrates. Therefore all your efforts to reduce the belly fat will be rendered useless if you consume more carbs as it will result in the belly fat to remain as it is. Stay away from pasta, bread, and sweet food and eat the foods that are rich in protein.
If you have a desire to get a flat stomach than try to stay away from dairy foods such as milk. Milk causes gas and bloating and therefore it must be avoided. Instead of milk, you should take yogurt.