See DR: Many possible causes of different stool color. "Really dark" is too vague. Bleeding from stomach or duodenum may produce stool as black as tar with a peculiar odor. A health pro can easily check your stool for blood. Most common reason for different stool colors is different foods.
Answered 11/28/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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