HomeEat Better10 Diverticulosis Foods to AvoidPage 2 10 Diverticulosis Foods to AvoidEat Better 2. Popcorn Like seeds, popcorn can also get stuck in the diverticula and cause inflammation. If you love popcorn, opt for air-popped popcorn instead of the kind that comes in a bag. This will help reduce your risk of a flare-up. Open the next pages