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Inverted Rabbit Sign

The very real and potentially disastrous effects of vitamin B12 deficiency.

May 14, 2011 |
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Supplementary Info

Sources Cited

V. K. Paliwal, H. S. Malhotra, R. N. Chaurasia, and A. Agarwal. “Anchor”-shaped bright posterior column in a patient with vitamin b12 deficiency myelopathy. Postgrad Med J, 85(1002):186, 2009.

A. Mahfoud; C.L. Dominguez; D. Rodríguez & R. Giamporcaro. Deficiencia nutricional de vitamina b12 en la infencia como causa de enccfalopatia. Rev Neurol, 48(8):444-445, 2009.

A. Flemmer. Vitamin B12-Manfel ist haufig und hat schlimme Folgen. Kinderkrankenschwester, 28(9):382-384, 2009.

A. Mariani; S. Chalies; E. Jeziorski; C. Ludwig; M. Lalande & M. Rodiére. Consequences de l’allaitement maternel exclusif chez le nouveau-ne de mere vegetalienne- A propos d’un cas. Arch Pediatr, 16(11):1461-1463, 2009.

S.C. Kuo; C.B. Yeh; Y.W. Yeh & N.S. Tzeng. Schizophrenia-like psychotic episode precipitated by cobalamin deficiency. Gen Hosp Psychiatry, 31(6):586-588, 2009.

Acknowledgements

Transcript

Before vegans get cocky, though… Floppy ears… are cute on a bunny. Not so cute on your spinal cord. The inverted rabbit ear sign. See how it kinda looks like an upside down bunny with floppy ears? Well, that’s not what your spinal cord’s supposed to look like. Why did this woman have spastic ataxic quadriparesis, a sensory polyneuropathy, and diffuse spinal cord swelling? Because, she was a strict vegetarian lady. I assume they mean strictly vegetarian? Then again maybe she was just quite the disciplinarian. Either way, people eating plant-based diets must take vitamin B12.
Reports continue to pour in from all over the world, whether you’re a vegetariana estricta a strehng veganeh, or eating vay-jay-tah-lee-yeh, you’d have to be crazy not getting your B12. Literally. 31 year old stock trader turned paranoid psychotic—but not because he was schizophrenic. Because he was vegan, and didn’t eat vitamin B12 fortified foods or take a B12 supplement. Suffered for 3 years before his doctors figured it out.
Kiss me I’m vegan. No thank you. 41 year old woman, vegan for two and a half years without B12. Kiss a vegetarian and taste the difference Before, And after she took her B12. Cleared up in no time. Vegans taste better, when they take their B12.

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 leave any questions for me on this topic below and I'll answer them as soon as I possibly can. Also, check out the 16 other videos on B12 and feel free to explore any of the other 1,449 subjects I cover in my videos.

For some context, please check out my associated blog post: Vegan B12 deficiency: putting it into perspective.

  • http://nutritionfacts.org/members/EricNeeds/ Eric Needs

    Love this.

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

      Please feel free to leave any questions for me on this topic below and I’ll answer them as soon as I possibly can. Also, check out the 16 other videos on B12 and feel free to explore any of the other 1,449 subjects I cover in my videos.

  • http://nutritionfacts.org/members/GeorgFridrich/ Georg Fridrich

    A very well tasting Vitamin B12 resource is the old British well known Marmite. Easily taken in soups or breakfast porridge but also thinly spread on toast.

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

      I don’t know about good tasting :) but yes indeed, a good source of vitamin B12.

  • Michael Greger M.D.

    Also be sure to check out my associated blog post Vegan B12 deficiency: putting it into perspective!

  • wchiwink

    i LOVE Marmite and eat it every morning,  - not sure i’m getting enough B12 though, starting to get worried after watching this vid…i suffer from severe back problems! (never taken supplements, but now i will!)

  • Veggie Mama

    Why don’t they add B12 to soymilk like they add Vitamin D to cow’s milk?

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

      They do in the U.S., but I think in the U.K. for example, vitamin fortification isn’t allowed until the organic (bio) standards. Maybe someone out there knows more?

    • http://www.facebook.com/profile.php?id=670735069 Tan Truong

      Canada’s organic “So Nice” brand has B12 and D fortified among other vitamins.

  • VeganDebi

    Is it true that B12 needs to be injected to get the full benefits???

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