Can I eat tuna with ulcerative colitis?
During a flare: Usually OKIn remission: Usually OK
Tuna is a lean, easy-to-digest source of complete protein and omega-3 fatty acids, and it is specifically called out as an easier-to-digest protein choice during a flare, alongside eggs, chicken, and tofu.
During a flare
Plain canned or cooked tuna (not fried, not heavy mayo-based salads with raw crunchy add-ins) is a commonly suggested flare-friendly protein.
In remission
Tuna is generally well tolerated in remission and is one of the recommended oily-fish options for regular omega-3 intake.
Ways to make it gentler
- Choose canned in water over heavily fried preparations
- Go light on mayo, raw onion, or celery mix-ins during a flare
Sources
- Inflammatory Bowel Disease Nutrition Tips (Crohn's Disease and Ulcerative Colitis) — Gastrointestinal Society (badgut.org)
- What Should I Eat with Crohn's or Colitis? IBD Diet Guide — Crohn's & Colitis Foundation
Last checked 2026-08-12
