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Pasadena, CA
A 28-year-old female asked:

I was on 65mg iron supplements and had black stool. suddenly my stool is no longer black. does that mean i am no longer absorbing it all & take more?

1 doctor answer1 doctor weighed in
Dr. Michael Dansie
Family Medicine 17 years experience
No: Black stools are a normal adverse effect from taking iron. Better if you can get retested for anemia to see if the oral iron has helped before stopping it abruptly.
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Similar questions

A 49-year-old member asked:

Help, I have black stool, but I do take iron supplements, should I be worried?

1 doctor answer7 doctors weighed in
Dr. Glenn Messina
Aesthetic Medicine 36 years experience
Check up: Iron will cause black stools which is likely to be the culprit here. But at 49 you are ready for your first colonoscopy so I would see your MD and discuss this with them . A simple test will rule out blood in the stool but since you are just about due for a GI workup ...
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jun 1, 2018


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