There is no single diet for individuals with ulcerative colitis, but a diet high in protein, whole grains, healthy oils and fresh produce is recommended, according to WebMD. Fatty, greasy foods and sauces, milk products, alcohol, caffeine, and raw fruits and vegetables are common trigger foods for many colitis sufferers.
High-fiber foods, such as bran, nuts, seeds and popcorn, are problem foods for many individuals, states WebMD. Whole-grain pastas, breads, crackers, cereals and brown or wild rice can also cause symptoms. Those with colitis should avoid dried beans, legumes and peas as well as seeds and nut butters if symptoms arise. Many colitis sufferers have reactions to sugar-free gum and candies that contain sorbitol, mannitol and xylitol; foods that have sulfur or sulfate; refined sugar products; and spicy foods.
White rice and products made from white or refined flour are more easily tolerated choices, explains WebMD. Well-cooked vegetables without seeds, ripe bananas, peeled apples, and soft, canned fruits without added sugar are recommended. Suggested protein sources are fish, eggs, and tender, well-cooked meats and poultry. Individuals who tolerate lactose should use low-fat or skim milk products, yogurt and buttermilk. Good beverage choices include decaffeinated coffee and tea and sugar-free soft drinks. Keeping a food diary for several weeks to assess reactions to various foods is suggested.