Does anyone find taking vitamin D capsules turn their stool black?

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Ive been taking Vitamin D capsules for a few months and noticed my stools are darker , sometimes even black. I've heard of this when you take iron supplements but not sure about VD. It has me concerned because black stool prior to this resulted in 2 colon polyps being removed but I'm not due for another colonoscopy for 2 years. I wondered if anyone else has experienced black stool while taking VD. I take 2000 IUs a day?

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