Diet recipes for sufferers of stomach ulcers should exclude high-fat meats, citrus fruits and spicy foods and include ingredients such as lean meats and high-fiber foods, according to Everyday Health. Foods affect each person with an ulcer differently, but some foods are more likely to cause discomfort.
Additional foods to avoid are tomato products, condiments that are high in fat and chocolate. Those with an ulcer also should not drink coffee or alcohol, states Everyday Health. Nuts, nut butters and oil are all part of a healthy diet for an ulcer patient, although there is no evidence that any foods heal an ulcer. Best preparation methods are those that limit fat such as baking and roasting. Meals should be small and frequent, and the last one should occur two hours or more before going to sleep.