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5 Things That Make Diverticulitis Flares More Likely

Friday, June 5, 2026Joe Leech, Dietitian (MSc Nutrition & Dietetics)View original

Most people with diverticulitis ask the same question after a flare: “What did I eat?” Was it the nuts? Was it the popcorn? Was it that salad? Was it the steak from three nights ago? You see the same questions everywhere people talk about diverticulitis: coffee before breakfast, red meat, seeds, constipation, stress, fiber, alcohol, and genetics. People are trying to find the one thing they did wrong. But flares usually aren’t caused by one magic food. In fact, one large study published in JAMA followed more than 47,000 men and found that nuts, corn, and popcorn did not increase diverticulitis risk — and popcorn was actually linked with a lower risk in that study (1). So if you’ve been blaming one meal, or one tiny seed, you may be looking in the wrong place. And if you’re thinking, “But... [Discover More...]

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