Traditionally used for ulcers, upset stomach, heartburn and diarrhea, papaya contains papain, a natural digestive enzyme that helps break up foods that may be irritating the stomach.
It's a significant source of both soluble and insoluble fibre. (Soluble dissolves in water; insoluble doesn't.) You need both types for digestive health. Bonus: Oat bran lowers cholesterol.
Not only are they high in insoluble fibre, they're also rich in pectin and other enzymes that help break down and rid the body of irritating food particles. Sensitive stomach? Try them baked, not raw.
Traditionally used to treat both morning sickness and diarrhea, cinnamon is also effective for breaking up gas bubbles. Sprinkle it on savory foods (like chicken) as well as on sweet ones (apple pie).
This herb's a natural antigas remedy, which is one of the reasons you often see it offered at the end of a meal at Indian restaurants. Half a teaspoon of fennel seeds should do the trick.
Exceptionally high in potassium, fibre and stomach-friendly (and heart-healthy) oils, avocados help keep things moving. Try a few thin slices on a sandwich instead of mayo.