A 41-year-old member asked:
Disclaimer

can eating black licorice cause poop to be green?

1 doctor answer
Dr. Scot Lewey
36 years experience Gastroenterology
Black stool: Eating black licorice is a known cause of black stools. Bile in stool causes green color. Blood in the upper GI tract acted on by digestive enzymes turns black and this is called melena or melenic stools. The stool will not only be black but "tarry" and sticky and very maladrous. Iron can turn the stool black but not foul smelling and tarry.
Answered on Aug 14, 2019

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month

Related questions:

A 37-year-old female asked:
Dr. Charles Cattano
38 years experience Gastroenterology
Not normal, get help: Blood in stool is a warning sign. Brisk bleeding warrants emergency care. Causes of bleeding may be predictable (e.g. rectal trauma), but evaluation i ... Read More
A 16-year-old male asked:
Dr. John Rhoades
47 years experience Family Medicine
Below: This is probably from the licorice that you consumed. If this continues for two days, then you need to see your DR and have the stool checked for bloo ... Read More
A female asked:
Dr. Andrew Seibert
34 years experience Gastroenterology
It's possible.: As long as your stools are not solid black or bloody, it is possible that it is related to the grape juice. You should stop the grape juice for one we ... Read More
A 23-year-old female asked:
Dr. Gurmukh Singh
48 years experience Pathology
No: You may take a fiber laxative like Metamucil and drink enough water daily so that your urine is colorless. For the long term you may try to increase y ... Read More
1
1 thank

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month