these may be ways that help naturally:
- eat foods low in fat and fiber.
- eat five or six small, nutritious meals a day instead of two or three large meals.
- chew your food thoroughly.
- eat soft, well-cooked foods.
avoid carbonated, or fizzy, beverages.
- avoid alcohol.
- drink plenty of water or liquids that contain glucose and electrolytes,

Also prebiotics and probiotics might help.