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A member asked:

I just started taking a multivitamin. can it cause tiny brown/black flecks in stool? i am certain it is not blood in the stool or on toilet paper.

A doctor has provided 1 answer

Possibly: Some multivitamins contain enough iron in them to darken the color of stool. Just to be sure it is not blood, talk to your doctor about a simple stool test that can be done in the office.

Answered 3/31/2015

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