What Not to Eat with Diverticulitis: 25 Important Tips

6. Nuts, Seeds, and Popcorn

For some time, medical professionals informed people with diverticulitis to avoid hard foods such as nuts, seeds, and popcorn, due to the difficulty some individuals have digesting these foods. Experts said the foods could stick to the colonic lining or become trapped in diverticula, exacerbating the condition. Today, doctors no longer prohibit these foods, as there is no real evidence of nuts or seeds causing flare-ups, and many believe a diet high in fiber -- which is found in many seeds and nuts -- could actually help people with diverticulitis. However, some medical practitioners still recommend avoiding high-fiber foods like seeds and nuts during or immediately after an acute flare-up.