Is coffee allowed on SIBO diet?

While black coffee is technically low-FODMAP and allowed on a SIBO diet in moderation (typically limited to one cup daily), it should be approached with caution. Coffee stimulates gastrin release and colon motor activity, which can trigger digestive discomfort, spasms, or diarrhea in individuals with sensitive gut walls or hydrogen-dominant SIBO. Additionally, caffeine is a strong gastrointestinal stimulant that can irritate the gut lining. High acidity levels in coffee may also exacerbate acid reflux. To consume it safely, avoid adding standard milks, sweet syrups, and prebiotic sugars. If you decide to include it, monitor your symptoms closely and check our detailed guide on the [low FODMAP diet SIBO](/low-fodmap-diet-sibo) for alternative morning beverage options.

Disclaimer: This content is reviewed and fact-checked by Daryl Stubbs, Certified Holistic Nutritional Consultant (C.H.N.C), for educational purposes. It does not constitute medical advice or a doctor-patient relationship.