No specific foods need to be avoided by people who suffer from diverticulitis, Mayo Clinic states. Although many patients have been instructed to steer clear of nuts, seeds and popcorn, no evidence supports this ban. A high-fiber diet that contains these foods helps keep waste moving through the intestines.
Unless patients are having diverticulitis attacks, high-fiber foods, such as fruits, vegetables, beans, legumes and whole grains like brown rice, should be eaten, the University of California San Francisco Medical Center recommends. If a patient is not already consuming a high-fiber diet, it should be developed gradually until 25 to 30 grams are eaten daily.
However, in the event of a diverticulitis attack, a patient's diet should change, the UCSF Medical Center reports. Initially, only clear liquids, including broths, Popsicles, Jell-O, and apple, cranberry and grape juices, are to be consumed.
With a doctor's instructions, this limited intake transitions to a low-fiber diet containing foods like white bread and pasta, low-fiber cereals, eggs, dairy products, and well-cooked, tender meat, describes the UCSF Medical Center. Symptoms typically start to decrease after a few days. At this point, doctors typically recommend the addition of 5 to 15 grams of daily fiber. When symptoms have completely cleared up, patients resume their high-fiber diets.