A member asked:

Can drinking red wine cause you to have black tarry stools?

A doctor has provided 1 answer
Dr. Jay Singh answered

No, test stool: Black tarry stool or melena is typically associated with blood from a proximal GI source. Ulcers in the stomach and vascular lesions can be types of causes. Wine itself and the pigment of the red grape do not change the color of the stool. Beets and other pigmented foods do alter the color. You should be tested for blood in the stool and possible anemia.

Answered 9/19/2020

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