Sex and Spirituality
September 29, 2010
Inaction Is Action
November 19, 2010

B12 Deficiency (Rewritten)

My personal position is that B12 deficiency is not a special issue for vegans, though it may be an issue for people as a whole (including but vegans but in no way exclusively).

The whole issue of vegans being supposedly doomed to vitamin B12 deficiency, in my opinion, has more importance than meets the eye.

On the surface, it just means that vegans need to take pills – or so you’d think. For me, however, the presupposition behind the idea of B12 deficiency as a vegan issue is that meat eating is natural and veganism is unnatural.

This message is not a happy one for veganism. Even if they accept the extra effort and expense of taking B12 supplements, a believer in vegan B12 deficiency is likely to feel more stressed about percieved “dangers” in the diet. More likely, these beliefs will keep you from ever becoming vegan.

Veganism Is Natural

The fact is the vegan diet isn’t dangerous, because it is natural. Our body – while it can digest meat and so on – is made to be able to do without it. If you observe our closest primate cousins, meat is a negligable part of their diet – often consumed for ritualistic reasons or in times of starvation only. Our closest cousins, the bonobos, who walk on their hind legs 50% of the time and are among the very few animals in the world to share the human obsession for sex, are about 99% vegan. At this level, we can assume that some bonobos could go long stretches, maybe even their whole lives without consuming meat. We can also admit that their B12 consumption, as viewed by the modern orthodoxy, is very low.

Bulls and gorillas get very little protein and are bigger and stronger than humans. In the same way, thousands of totally herbivorous species consume, according to modern science, “no” vitamin B12, without ever suffering from a B12 deficiency. Why would nature be so negligent as to leave us without that ability? In fact, seeing as all evidence points in the direction of us being built as herbivores primarily, it’s absurd to think it did.

The B12 Deficiency Myth

It’s more like human design, than nature, that has an investment in keeping us dependent on such a resource-intensive and addictive product as animal meat. This is why it seems a wonderfully good ruse to some humans to create scare stories about the B12 deficiency waiting in store for vegans.

Their stories are varied and inconsistent, but generally suggest that at X point of time as an unsupplemented vegan, your body’s B12 stores will run out and you will suffer from horrible nerve damage and later, presumably, death.

“X” varies, because when someone disproves one “X”, a new figure needs to be invented that puts off vitamin B12 deficiency a little further into the future. The most sensible figure is for 4 years, which is the length of time science believes the body’s B12 stores would last if they weren’t replenished. However, some people have given me figures of 10 or more years. I don’t know what they have to say about Douglas Graham, who has been an unsupplemented raw vegan for 33 years as of 2011. Or Leonardo Da Vinci, who was probably a vegan for most of his life and lived till the respectable age of 67. He didn’t die of B12 deficiency, either. I wonder if there would be anyone who would step up and suggest that if only he lived till 75, he would have gotten B12 deficiency.

Addition: After rewriting this article I found a much better example. Donald Watson, the inventor of the term “vegan” and one of the founders of the Vegan Society, was vegan for more than 70 years before his death at 95. Almost to prove it to the world, he was in perfect health every year of his life till the end. He never took a B12 supplement.

B12 Deficiency Irreversible?

To make the B12 deficiency bogeyman that much more scary, it’s often suggested that some of the consequences of B12 deficiency are irreversible by the time symptoms come up, which I’m pretty sure is a lie.

The exact case of the matter is that B12 deficiency can cause irreversible damage if left long enough, but in the case of an aware vegan who just wants to try a – pretty safe – experiment, the diagnosis and treatment could be very fast if something somehow did go wrong. Alas, the bogeyman of irreversible damage caused by B12 deficiency is used to scare people away from making such experiments.

Don’t fall for people who strive to suggest that veganism is dangerous or unnatural. Like any dietary change, the effects it has on individuals can sometimes be unpredictable, for which reason I advise a certain amount of caution and some trial-and-error if necessary. Any slight chance of problems veganism could possibly have, though, I strongly believe would not result in permanent damage. The worst that could happen is that you fail to stay vegan. How scary.

And what’s the best that could happen? Now that’s a question I’d like people to ask themselves.

Veganism? What’s the best that could happen?

B12 Deficiency As A General Issue

While veganism isn’t a cause of B12 deficiency, I would like to mention that B12 deficiency is a common issue for people as a whole.

Many a diagnosis of “vegan” B12 deficiency was actually an issue of normal B12 deficiency. Statistics suggest that as much as 40% of people in the USA are B12 deficient. The percentage among vegans is about the same; possibly slightly more, but not radically more if it is. I don’t know what proportion of vegans supplement B12 but I think it’s only about half or so.

If you’re worried about B12 deficiency, you can get tested, and supplements may be of help.

A discussion of the causes of the modern epidemic of B12 deficiency is too much for this article, though my pet theory is that the abuses we put our body through reduce our ability to absorb it. (More on this in the articles I’ll link to in a moment).

But let’s get this straight. B12 deficiency will never be caused by veganism. It’s a sickness that many people experience. Veganism may or may not have some effect on it. Not much effect, or not frequently an effect, in any case. I’m inclined to think it could even be a positive effect.

As I said, while veganism may effect B12 deficiency, it will never be the primary cause of B12 deficiency.

B12 Deficiency References

This is a right-brained sort of article. I’m not very fond of doing nitty-gritty scientific research. I’ve enjoyed stating my intuitive and common-sense reasons for not believing in the vegan B12 deficiency myth in this article.

If you want some more scientifically hard evidence, though, I’m going to present you with some hard-hitting articles which have helped to shape my opinion on this matter.

First is the article on B12 deficiency by Andrew Perlot. It’s a very complete article, and includes among other things the case study of the author himself; 4 years into an unsupplemented vegan diet, and a fine blood profile for vitamin B12.

Now here’s an article on  B12 deficiency written by the Natural Hygeinist Gina Shaw. And another by Virginia Vetrano. I particularly like the experiement where most of a group of 100 people were cured from B12 deficiency by a fast. According to the standard position on B12 deficiency, none of the vitamin was consumed by the patients at that time. So how, then, did their blood levels of B12 not only go up, but return to normal?

Finally, I’d like to add this article on B12 deficiency by Virginia Vetrano. She has actually written several articles on the site I’ve linked to, which can be found at the index of links at the bottom of the article. This one I particularly like, because, with delicious indignation, she takes apart the scientific study which has been used to “prove” that vegans have a problem with B12 deficiency. The truth of the matter is that only through out-of-context quoting has that conclusion been made from the study, and the actual substance of the findings is that vegans don’t have issues with B12 deficiency. Can you believe it?

If you need any more convincing, here are two more articles:


Anyway, I hope this article was of use to you. As always, use your head and be careful where care is warranted. That said, take a moment to feel liberated of fears too. Veganism is not a minefield of dangers at all. Not B12 deficiency, not protein defiency, nothing else, nothing. While everyone does respond differently to changes in diet, the bottom line is that veganism is natural and basically good for you.


Related Posts:

A Spiritual Perspective On Veganism

A New Leadership


Macrobiotic Soup

Looking Down To Find The Sun (Poem)


Leave a Reply


  1. I’ve been hearing a lot of the vegan b12 myth.

    It really brings up the reality that we really know nothing about our bodies and doctors are really still not professionals with the body.

  2. Nils says:

    B12 is a very interesting topic, and this blog post adds yet another perspective on the whole matter. I’ve read summaries of studies claming that plant foods either don’t contain significant amounts of B12 or containing analogues only (which also applies for different types of algaes), which might, according to differing studies again, either have no effect or actually inhibit the absorption of actual B12 (Cobalamin).

    I found an interesting thread on the web (from 2004 though), with lots of studies in there, but I never got any further than page 1:



    • Sophia Gubb says:

      Thanks Nils. I’d heard about this seaweed stuff, but in light of the studies which suggest that B12 is in any food with B complex vitamins, I just gotta wonder if this stuff has all been set up by the meat industry to spread confusion.

  3. Agus says:

    Alfalfa has B12 so have a bit on your salad or sandwich once a week if you’re worried.

  4. J- says:

    I agree, it’s all a myth. BUT. I believe that we have to be honest. Being a vegan doesn’t say that you are automatically eating healthy. There are hundreds way to be a vegan and to eat junkfood, dead food, or food devoid of nutrients, or food with too much anti-nutrients… SO, for instance, eating too much bread, crackers, pasta, sugar, processed food, canned/stored food, tofu, and not giving your body enough “good bacteria”, that will create problemes with nutrients uptake or with digestion. It’s time to redifine true health. Not just say vegan=healthy. Because, trans fat or white sugar are vegan, dead (white flour, pasta) food is vegan, processed factory made can be vegan… tofu and soybeans, not that healthy either, too much anti-nutrients.

  5. Filip says:

    Excellent article backed with more than sufficient scientific facts that will surely will do the trick for many hesitating pre-vegans like myself.

    Yep, I’m on my way of becoming a (raw organic/biodynamic) vegan, but I just had to finish researching every possible “danger” of the vegan diet. These B12 examples I was lucky to come by pretty much convinced me that humans are natural herbivores and that one can live normal and healthier live w/o taking B12 shots/supplements.

    As with the above posted comments, I also agree that there are dangers lurking in the vegan diet itself, so one must continue the research in the hope of eliminating all the anti-nutritional plants that usually end up on the vegans’ menu (or making them nutritional like with the subsequent aprt of my comment).

    Recently I just found out that the non fermented soy products like: tofu, soy milk, soy flour etc are full of anti-nutrients and are to be avoided at all costs. Fermented soy products like: tempeh, miso, nato and tamari sauce on the other hand are generally safe and even beneficial for humans consumption.

    Anyhow, just wanted to say big thanks for your info and be sure that I’ll spread it anywhere I can…
    Cheers and take care! 😉


  6. Angus Holliday says:

    Beautiful common-sense.

  7. Dominique says:

    Andrew Gubb November 19, 2010 at 5:11 pm

    Thanks Nils. I’d heard about this seaweed stuff, but in light of the studies which suggest that B12 is in any food with B complex vitamins, I just gotta wonder if this stuff has all been set up by the meat industry to spread confusion.

    I would have to agree with you Andrew I think this is something that was set up by meat and drug company’s to obscure lines or what is fact. To keep the masses guessing whats right and whats wrong. I thought about being vegan. Being a Texan and growing up with meat on your plate 3 times a day my mom thought I was insane. First thing she told me your going to deplete your b-12 and be sick all the time. Since learning about pink slime or fillers in beef. (Jamie Oliver Food Revolution) I learn so much about food. Organic is best but if your below the poverty line you can not afford to give your family the things they need food wise. I decided a long time ago that eating meat is awesome I just cut back to 3 meat meals a week and the rest fruits and veg with high HDL fats like nuts. Its up to the person to do research. Because of being diabetic. I have found out that metformin and liquid insulin flushes out all of the vitamins and minerals because the metformin does not know the different between sugar and vitamins. This means that any B-12 you have in your system is gone as well. Dr.s do not tell patients about this. I was told by my dietitian this is something there not allowed to discuss The Food and Drug knows this drug does this if people knew about primrose oil and B-12 there would be a lot of people that would not have there legs cut off because of deformed red blood cells that cant repair the damaged nerves in the feet and bring oxygen to the nerve endings. I brought this up to him and he closed his door to talk about it with me. that should say something

    key word searches metformin and B-12 deficiency

  8. ida says:

    what foods has b12?

  9. Christopher says:

    Interesting article. If B12 deficiency is a result of abnormal gut absorption and not just veganism, sometimes the supplements are ineffective. I recently heard about a new oral prescription alternative to the injections called Eligen B12. I recently read that it works even if you don’t have intrinsic factor (so even if you don’t have normal gut absorption). Apparently it came out a month or two ago. Has anyone heard of it or tried it??

Leave a Reply

Your email address will not be published. Required fields are marked *