Some guidelines are eat frequent small meals- 5 to 6, instead of 3 large meals.Avoid oily and spicy food. In general, avoid all fatty foods.
Cessation of
smoking helps to heal gastritis. Avoid consumption of alcohol.
Take the last meal of the day early and let there be a time gap between the last meal and bedtime. If you are overweight, try to reduce weight. Adapt a regular exercise regime, which will improve bowel movements as well as relieve any tensions or stress.