Does coffee cause gas ?

Possibly: too much caffeine can irritate the stomach lining and cause gas formation. Try decaf and see what happens.

Yes: It can also lead to heart burn, reflux, and diarrhea type symptoms.

Possibly: As caffeine can cause acids in your stomach to flare up, you can develop increased belching and flatus (gas.) it can also cause increased bowel transition and promote a bowel movement.