Which Foods Cause Dark Stools?

Dark stool may be caused by foods or medications including:
  • Beets.
  • Black licorice.
  • Blueberries.
  • Iron supplements.
  • Medications containing bismuth subsalicylate (for example, Kaopectate or Pepto-Bismol)

Can certain foods cause black stool?

Eating black licorice, blueberries, blood sausage or taking iron pills, activated charcoal, or medicines that contain bismuth (such as Pepto-Bismol), can also cause black stools. Beets and foods with red coloring can sometimes make stools appear reddish.

What does it mean if your poop is very dark?

Black stools are a worrisome symptom because it may be due to a large amount of bleeding into the digestive system, most often from the upper GI tract including the esophagus, stomach, and duodenum. Red blood cells are broken down by digestive enzymes in the intestine and turn the stool black.

Sophia Al-Mansoor

Sophia Al-Mansoor

Global Business & E-Commerce Reporter

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.