Discover the top causes of black poop like diet, supplements, and gut health conditions, plus the best treatment options ...

If diarrhea is your concern, coffee may make things worse. Plus, the stomach-acid generating effect of coffee can exacerbate symptoms of heartburn or acid reflux for people predisposed to these ...

But poop that looks black or bright red can be a ... For inflammation, erosion, or an ulcer, they might use acid-blocking drugs. Other causes may require more intensive treatment.