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A member asked:
I had a big night of drinking last night and had guinness. this morning my stool was normal but now it's loose and black. should i be worried?
A doctor has provided 1 answer
Too much drinking: Guinness is a dark beer - so its not unusual to have dark stools. The looseness is probably due to too much alcohol load.
Answered 6/6/2018
2.9k views
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