There can be two possibilities as why your stomach is not flat: Either you have gained fat on your belly or on your abdominal muscles are soft and not toned up. You should lose your body fat to make your stomach flat. If your stomach is loose then it will be difficult to have a flat stomach. Sit Ups and crunches and all exercises makes stomach bigger if it is not done properly.
Here are some of the following tips will enable you attain a flat stomach:
Eat frequently so that your body’s metabolism is active and burns more fat. When you don’t eat metabolism will slow down and will allow fat to accumulate.
Eat very often, eat food in small quantities
At each meal time, eat small quantities of food. Need not eat a lot of food to feel satisfied and full. As your body is feeling nourished frequently, it will not get concerned as to when the next meal will be available as it is safe and your metabolism will hence speed up.
Drink plenty of water
Water does not have any calorie so drink as much water as you can. Make it a habit to always carry drinking water bottle. Drinking much water makes your stomach full and so you can never get that craving for food. Drinking water will eventually make you have a flat stomach and make you not feel hungry.
Before every meal ensure that you drink a glass of water and drink water often as you take your meal. Since water has zero calories, if you fill your stomach with more water and less food, that is calories that you will be consuming during the day as a whole.