Can I Drink Coffee with IBS?

Rebecca Taylor
Reviewed by Rebecca Taylor, Registered Nutritionist (RNutr)
Quick Answer

Coffee's effect on IBS depends entirely on your symptom type. It can help constipation but worsen diarrhea significantly.

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Low FODMAP Safe: 1 small cup black coffee

What Our Protocols Say

Bloating-Dominant Limit to 1 cup

Black coffee doesn't break your meal spacing, but dairy additions cause problems. Caffeine can speed digestion.

Tip: Switch to half-caf or herbal tea during your elimination phase.

Constipation (IBS-C) May help

Caffeine stimulates gut motility which can aid constipation. Coffee 30 minutes after breakfast may trigger a bowel movement.

Tip: Try 1 cup with breakfast as part of your morning routine.

Diarrhea (IBS-D) Strictly Avoid

Coffee is a major gut stimulant that directly worsens urgency and loose stools.

Tip: Peppermint or ginger tea are the only safe options.

Mixed (IBS-M) Depends on the day

Coffee may help on C days but hurt on D days.

Tip: Track carefully — only drink coffee on constipation days.

Post-SIBO Recovery Limit to 1 cup

Coffee can interfere with your MMC (cleaning wave) if consumed between meals.

Tip: Only with breakfast; nothing between meals.

Stress-Triggered Reduce or eliminate

Caffeine amplifies anxiety and stress responses, which triggers your gut symptoms.

Tip: Switch to decaf or calming herbal teas.

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Medical Disclaimer

This information is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before making changes to your diet, especially if you have a diagnosed medical condition. Individual responses to foods vary.

Last updated: January 29, 2025 | Reviewed by Rebecca Taylor, RNutr