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Is Cod Liver Oil Good For You?

Even distilled cod liver oil supplements may have toxic levels of vitamin A.

January 25, 2011 |
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Supplementary Info

Is Cod Liver Oil Good For You?, 5.0 out of 5 based on 1 rating

Sources Cited

Ann Otol Rhinol Laryngol. 2008 Nov;117(11):864-70.Cod liver oil, vitamin A toxicity, frequent respiratory infections, and the vitamin D deficiency epidemic.Cannell JJ, Vieth R, Willett W, Zasloff M, Hathcock JN, White JH, Tanumihardjo SA, Larson-Meyer DE, Bischoff-Ferrari HA, Lamberg-Allardt CJ, Lappe JM, Norman AW, Zittermann A, Whiting SJ, Grant WB, Hollis BW, Giovannucci E.

A. Sheth, R. Khurana, and V. Khurana. Potential liver damage associated with over-the-counter vitamin supplements. J Am Diet Assoc, 108(9):1536-1537, 2008.

Acknowledgements

Transcript

Cod liver oil that has been distilled to remove any industrial toxins and heavy metals. Harmful, Harmless, or Healthy?
Harmful, due to toxic levels of vitamin A. In fact, so much it could damage our own liver. So, not good for the cod’s liver or ours.

To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by veganmontreal.

To help out on the site please email volunteer@nutritionfacts.org

Dr. Michael Greger

Doctor's Note

Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out theother “HHH” videos (Harmful, Harmless, or Helpful?). Also, there are over a thousand subjects covered in the rest of my videos–please feel free to explore them as well!

For some context, please check out my associated blog post: Soymilk: shake it up!

  • http://nutritionfacts.org/members/mgreger/ Michael Greger M.D.

    Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the other “HHH” videos (Harmful, Harmless, or Helpful?). Also, there are over a thousand subjects covered in the rest of my videos–please feel free to explore them as well!

    • Susan Fairbairn nee Kirk

      I would be interested in hearing the answers to the above questions?

  • http://nutritionfacts.org/members/ncibotti/ ncibotti

    I’ve been using Arctic Cod Liver Oil from Nordic Naturals for years. I’ve also been giving it to my 7 year old son for years. I’m deeply concerned about the possibility of liver damage due to high levels of A. Are you recommending that we no longer use cod liver or fish oil supplements?

  • Deanna

    What is considered to be a toxic level of Vitamin A?

  • Tina

    Where is the answer to the question ” what is considered to be a toxic level of Vitamin A? I would like to know the answer too.

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