Re: Black stool from certain foods?
When blood is digested, it turns dark in color and your observation likely represents some portion of the need for you to initially inquire since the presence of black or tarry stools can suggest the presence of a problem. Not so in this case. Also realize that over-the-counter antacid preparations will readily turn stool a dark or black color due to the large magnesium content.
I see nothing of your complaint or inquiry that would draw suspicion of a problem of any kind.
You're fine.
Best regards,
Rutheford Rane, MD (ret.)
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Best regards and Good Health