Blue stool color: Blue food coloring is a popular food additive, and when ingested in large quantities can make stools appear blue. Blue is not a pigment typically produced by the human GI tract. Blue is however the color that a hemoccult card will turn if blood is detected in stool--is this to what you are referring?
Answered 9/28/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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