Can I eat energy drinks with ulcerative colitis?
Energy drinks pack a high dose of caffeine, often alongside carbonation and sugar, both of which are separately linked to more urgent, looser bowel movements and bloating. An animal-model study did find that energy drink components reduced intestinal barrier permeability and colitis severity in mice, but the authors were explicit that this lab finding shouldn't be applied directly to people, since it didn't account for effects like disrupted sleep or metabolism.
During a flare
The combination of high caffeine, carbonation, and sugar makes energy drinks a commonly avoided category during a flare.
In remission
Some people in remission tolerate an occasional energy drink, but the high caffeine and sugar load means it's worth introducing cautiously and watching your response rather than relying on the animal-study findings as reassurance.
Ways to make it gentler
- Choose a lower-caffeine version if trying one
- Drink with food, not on an empty stomach
Safer swaps
decaf iced tea · electrolyte drinks without caffeine · water
Sources
- Energy Drink Administration Ameliorates Intestinal Epithelial Barrier Defects and Reduces Acute DSS Colitis — National Institutes of Health (PubMed)
- A Nutritional Plan for Anyone Living With Crohn's Disease or Ulcerative Colitis — Cleveland Clinic
Last checked 2026-08-12
