Lauren, what B12 supplement do you take? I've not had my levels tested and am always concerned. I rotate between a chewable and and under-the-tongue B12. On vacation I was using my sister's liquid B12. I don't know if I could ever give myself shots.
I do take vegan vitamin D, too.
Thanks for sharing and I have added that to my reference library.
The 38% of participants with low b12 levels kind of correlate with the general population in western society eating SAD diets which is around 40%.
This confirms the theory that not all vegans are b12 deficient and not all b12 deficient people are vegan. There are probably other causes at work here regarding the b12 deficiency such as high wheat and grain diets which may cause celiac disease and or gluten sensitivity which contribute to pernicious anemia and b12 deficiency.
I have a hypothesis that society overall will have better b12 rates when grains are removed from the diet.
my B12 was low before becoming vegan... I agree with you PK about the grains being an issue, possibly the over medication of society with antibiotics which destroy beneficial gut bacteria as well.
very interesting article on B12 PK!
great find on the raw vegan article as well :)
1500g of fruit/veg? Sounds like a high fat raw diet ;/
Thanks for sharing, however, all groups in this study ate over 30% energy from fat = high fat diet. Only 43 subjects were vegans, 43 vegetarians and 115 ate meat, fish, eggs.
Finally! Shame they included people eating raw animal products too. Would really like to see a similar study of 811ers!
Re B12 check. I'd be a little wary if your test was a plasma level check, especially if you take a B12 supplement. The plasma check just shows the amount of B12 present in the blood not the amount that your body is assimilating. The uMMa check is better for showing how much your body is actually using.
And I agree, Alex and Andrius - sounds like most of the participants were probably high fat which is obviously going to effect HDL levels.
the test was a blood test. Does that indicate a plasma level check? Thanks
AFAIK, uMMA is pee-in-a-cup. It's the only accurate B12 test.
Yes, Lauren, blood plasma check. You need to do an uMMA (urine) test. The blood tests can be pretty meaningless when it comes to B12.
Darn, ok, good to know. I'll have to ask the doctor next time to get that test ordered instead. Thanks!
The abstract paints it like raw food food gives you low B12, when comprehensive b12 studies show that more than 1/3 of the population is b12 deficient anyway.
Interesting that most were actually following an omivorous raw diet and yet 38% of them still had B12 deficiencies - goes to show it's not just a vegan issue (only 21% of participants were vegan)
"The median time of practicing a raw food diet was 3.5 y (minimum 2.2 y, maximum 38 y). Participants adhered to different variants of the raw food diet (Table 1). The majority consumed a mixed raw food diet including raw meat and fish (58%), 21% were ovo-lacto-vegetarians, and 21% consumed a vegan raw food diet. In terms of the proportion of raw food consumed, the majority of participants (75%) adhered to a strictly raw food diet, defined as >90% of total amount of food consumed raw."