Can I eat soda (regular) with ulcerative colitis?
During a flare: Usually avoidIn remission: Caution
Regular soda combines carbonation, which introduces gas into the digestive tract and can add to bloating, with a high sugar load that can pull water into the bowel and loosen stool. Many colas and other sodas also contain caffeine, adding a motility-stimulating effect on top.
During a flare
Sugary, carbonated soda is a commonly reported trigger for more diarrhea and bloating during a flare.
In remission
Occasional soda is tolerated by many people in remission; letting it go flat and choosing smaller amounts can make it easier on the gut if you want it.
Ways to make it gentler
- Let it go flat before drinking
- Choose smaller portions
Safer swaps
diluted juice · flat ginger drinks · water
Sources
- A Nutritional Plan for Anyone Living With Crohn's Disease or Ulcerative Colitis — Cleveland Clinic
- The Ulcerative Colitis Diet: What To Eat and Avoid — Cleveland Clinic
Last checked 2026-08-12
