14 Foods to Avoid If You Have Ulcerative Colitis
What not to eat
It can cause pain, bloating, and diarrhea during flare-ups, and often few or no symptoms between episodes.
Specific foods or eating habits don't cause ulcerative colitis, but they can make it worse. Here are some common foods that can exacerbate ulcerative colitis symptoms.
Legumes and beans are high in fiber and can cause gas, so they're not an ideal food for someone having an ulcerative colitis flare.
"But they're still an important staple in many diets, especially for vegetarians and vegans," says Julie Cepo, a registered dietitian and coauthor of the Crohn's & Colitis Diet Guide.
Try different preparations and smaller portions, says Cepo. For example, rinsing canned beans well, or removing the outer coating of chickpeas, or pureeing them into hummus can make these foods more easily tolerated.
Coffee and tea
The same goes for tea and other caffeinated beverages as well as products with guarana, a stimulant often found in energy drinks.
"Most people think they are automatically lactose intolerant if they have colitis, and that's not true," says Sunanda Kane, MD, professor of gastroenterology at the Mayo Clinic, in Rochester, Minn. "Lactose intolerance has to do with how much of a specific enzyme you have. And the only way to know is if you do an experiment where you drink a glass of milk and then see if you feel worse afterward."
You may be able to tolerate these foods if they're well cooked and chopped into small pieces, but if not, consider an alternative. "We like to focus on what people still can have," says Cepo, who works with IBD patients at Mount Sinai Hospital, in Toronto. "Cooked string beans, cooked cauliflower, well-cooked carrots, and sweet potatoes, for example."
Seeds are generally not a problem, though, if they're ground finely enough, Cepo says. Her patients have never had issues with ground flaxseed, for example, or tahini, which is made from a sesame-seed paste.
Corn and mushrooms
Dr. Kane recommends that IBD patients follow a low-residue diet while they are experiencing symptoms; this means avoiding anything that won't digest totally, such as corn, mushrooms, roughage like broccoli and cabbage, and small, hard foods like seeds and nuts.
Choose leaner cuts of meat, and remember that the more thoroughly you chew it, the less likely it will make your symptoms worse, says Cepo: Meat in ground formlike in meatballs, meat sauce, or meatloafis generally easier to tolerate than a tough cut of steak, for example.
Fatty fish may be a different story. People seem to tolerate salmon well, Cepo says.
Powders and finely ground spices can be incorporated successfully into your diet, says Cepo. But if you are cooking with fresh or dried herbs, like whole parsley and cracked peppercorns, chop or mince them finely so they are easier to tolerate, she says. If you have a bad reaction, cut back until you find an amount you can tolerate.
Some people report problems with peanut butter, which is rich in healthy fats, too.
"I see it as a portion-size issue," says Cepo. "If you enjoy chocolate and you want to keep it in your diet, most people can stick with a small piece of good-quality chocolate and be just fine."
Cepo's patients tend to tolerate white wine better than red, and often experience gas and bloating if they drink beer or carbonated beverages.
It's better to drink something with a meal rather than on an empty stomach, and she recommends that people try new drinks (or foods) at home first, rather than out at a bar or in a social setting.
"Spread it on crackers, breadsticks, put it in smoothies," she explains. And for some people, just thorough chewing before swallowing can be sufficient. "The smaller the pieces are going down, the less likely you are to have any issues."
If you're going to drink soda, limit your quantities and skip the straw, which can introduce more air bubbles into your GI tract, says Cepo.
"People seem to do better with onions when they're chopped or minced very small, or cooked well," she adds. "Or we tell them to use it to flavor their foods, like soup, and then strain out the actual onion if needed."