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    What causes dark colored stool?

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Posted on Tue, 25 Jul 2017 in Internal Doctor Category
Question: I recently started taking krill oil and during this same period of time have noticed my stools are very dark in color, could it be from the krill oil?
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Answered by Dr. Vaishalee Punj 24 minutes later
Brief Answer:
Yes it can be

Detailed Answer:
Hi
Thanks for your query.

Dark colour stools may happen from bleed in upper Gastro-intestinal tract.

Krill oil has become available in market as source of omega 3, 6, 9. Unfortunately, omega 3, 6, 9 from these sources is not similar to the ones found naturally in human body. This causes them to have side effects. Most common is gastrointestinal side effects like diarhea, altered gastrointestinal flora, and sometimes can also causes gastrointestinal bleeding.

I will suggest that you discontinue krill oil. Also drink cleaner water from reverse osmosis filter to avoid any gastrointestinal infection during the process.

If there is any bleeding, it will stop by itself in 2 days. If it persists please see your doctor.

Hope it helps. Let me know if you have any other queries.
Dr Vaishalee
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Vaishalee Punj

General & Family Physician

Practicing since :2003

Answered : 2372 Questions

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