A member asked:

I take a multi vitamin with iron and magnesium. i recently have been taking half the amount of magnesium as i was and my stool is darker and harder to come out. is this from the cut down on magnesium? i had an endoscopy and colonoscopy done 3 yr ago?

Q: i take a multi vitamin with iron and magnesium. i recently have been taking half the amount of magnesium as i was and my stool is darker and harder to come out. is this from the cut down on magnesium? i had an endoscopy and colonoscopy done 3 yr ago?

: People with low magnesium tend to be more constipated. Lowering your magnesium may have made your stools darker and harder due to constipation.

A doctor has provided 1 answer

Dr. Barbara MacFarlane answered

People with low magnesium tend to be more constipated. Lowering your magnesium may have made your stools darker and harder due to constipation.

Answered 9/24/2023

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A member asked:

I take a multi vitamin with iron and magnesium. i recently have been taking half the amount of magnesium as i was and my stool is darker and harder to come out. is this from the cut down on magnesium? i had an endoscopy and colonoscopy done 3 yr ago?

A doctor has provided 1 answer

Dr. Barbara MacFarlane answered

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