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Can magnesium citrate cause stools to turn black?

3 Answers

kaismama 12 Aug 2013

No. Iron will do that tho. You probably need a stool test for blood.

Votes: +0
amy_carver7904 13 Aug 2013

Its normal but it will cause Hard stool and may cause you to bleed but don't worry its not your your stool

Votes: +0
Inactive 13 Aug 2013

Don't know about magnesium citrate, but found that Bepto-Bismol (the pink stuff) can cause your stool and tongue to turn black. It goes way when you reduce the amount of Beto you are using, if any,

Votes: +1
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