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A member asked:
Can increasing the amount of sodas you drink (like coke) cause your stools to become very dark brown? can it make them black? have drank less water.
A doctor has provided 1 answer
Black stools: Drinking lots of soda will not change either stool or urine color. Dark urine color is worrisome for hepatitis while dark stool is worrisome for blood. Iron & bismuth can also darken stool. If you've noted this, go see your Family Doc or ER as soon as possible (immediately if weak, woozy, lightheaded, etc).
Answered 7/21/2020
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