B12 and Vit D results - please advise?

Could someone please comment on the values on the snippet of blood test results I will be trying to copy into this post ... the only way I can think of doing it is to snip the section from the scan of the results and attach as a photo!

I have had these results since Nov 2015, but have not had the gumption to try to address what they might mean until now - feel a bit more like I can inch forward again. 

Thanks, guys. x

Nope. Can't seem to attach it. Try to type it accurately!

Serum Vit B12: Normal, no action: 630 ng/L                           170-730 ng/L

25-OH-Vit D - Normal, no action:   57.2 nmol/L

18 Replies

  • Were you supplementing B12 before the test ? - even just a multi-vit containing B12 can skew the results.  Being around a 1000 is suggested by the PAS forum ....  Only 20% of your result of the B12 test is available to be utilised at a cellular level - where it is needed.

    VitD is LOW and converts to 23 in ng/L - so take a look at the link below for dosing according to results ....


  • Had stopped supplementing before the event, as far as I can recall, to try and get a base reading. Does the advice for  - what is PAS - apply to us too?

    Thanks, Marz - will follow through on the link too. I've just restarted taking Vit D at 5000 thingies a day also.

  • PAS = Pernicious Anaemia Society - and yes the 1000 for B12 applies for everyone.  Try to read the book by Sally Pacholok - Could it Be B12 ?  The quote is from there.  They have made a film about her life story in the US - trailer available on ...


    Your result could have been skewed as B12 can remain in the body for weeks/months - as told to me by Martyn Hooper who is the Chairman of the PAS when enquiring about my grandson.

     The above B12 site I have posted ( which I do a couple of times EVERYDAY ) should tell you everything you need to know about B12 - so do take time to read and learn all you can .....

    You cannot overdose on B12 as it is water soluble.  B12 is so important so I would always assume you are low in the body - especially if you have any gut issues.

  • Thank you. XXX

  • S**** - just reading it ... that's scary!

  • I'm sure you've read this multiple times, but the Pernicious Anaemia Society recommends a B12 level of 1000 ng/L. You can't overdose on B12 and it isn't poisonous. The Japanese consider a level of 500 to be where deficiency starts and your level is not much higher than that. So...

    Your B12 level is quite good compared to many I've seen on here. You could raise your level if you wanted to. Cheap B12 supplements contain cyanocobalamin, and the body must be capable of converting that to the active forms of B12. If the body can do the conversion then the cyano-B12 will release cyanide into the body as part of the process of conversion.

    The active B12 alternative that works for most people is methylcobalamin, and this is available on Amazon and other supplement sites. You wouldn't need more than 1000mcg per day. The most popular brands are Jarrow Formulas and Solgar. Stick it in the mouth and let it dissolve as slowly as possible to maximise absorption.

    When taking B12 it is essential to have sufficient levels of folate to go with it, and to keep the other B vitamins at good levels too. The best form of folate is methylfolate. You need to find a B Complex that contains folate in the appropriate form - avoid folic acid. Personally I take Thorne Research Basic B Complex, 1 a day.

    Vitamin D - 57.2 nmol/L

    Your level is way below optimal for vitamin D, which is (for many of us) about 100 nmol/L. To raise your level you would need to take about 4000 iU - 5000 iU vitamin D3 per day.

    Vitamin D3 should be taken with your fattiest meal of the day to increase absorption.

    Vitamin D3 raises calcium levels as a side-effect. To persuade that calcium to go into your bones and teeth rather than line your arteries you need to take a vitamin K2 supplement with it.

    Don't take vitamin D3 indefinitely without re-testing. It can be toxic at very high levels. Re-test after a few months. You might want to reduce your dose during the Summer, it depends on how much sun you normally get and how much skin you expose.

    Once you've got your level to optimal, reduce your dose to about 2000 iU per day to maintain your levels where you want them.

  • God bless you, HB, for this. I may have read that 1000 thingies of B12 are good, but I have realised that I can only take in so much information, and it becomes tricky when the leg bone connects to the thigh bone and the thigh bone connects to the ... 

    In other words, when you look at one thing, you have to consider a shed load of others. I hadn't put together the Vit D and that when calcium goes up you need vit K2 to encourage it into the bones ... I've seen the information in parts but not connected the Vit D to the calcium to the Vit K2 to the folate ... That makes it extremely comprehensible - thank you. Will be following Marz's link to see if I can get my head round it.

    I did try methylcobalamine, Solgar's, but I just never really knew if it was doing anything, to be honest. This was after months and months of still feeling sh*** on Holland and Barrett's B12. Then I read that one doesn't readily absorb the stuff if not the cobalamine type and/or if one's digestive system is kaput, which mine is. I kinda gave up on trying different supplements because it was so hard to work out what was what and having which effect! So, for you, is the Thorne Research Basic B Complex sufficient for folate AND B12 as well as all the others? I mean, that one tab will 'do' for the B12 complex? And is it Amazon again?

    Sorry to just pick your brains all the time, but the Vit K - will any old K do?

    thanks, kid. xx 

  • I take Jarrow Formulas methylcobalamin in addition to the Thorne Research Basic B Complex. I buy both from Amazon.

    Every so often I give myself a break from the methyl-B12 and just take the B Complex. But eventually I feel the lack and I start taking the methyl-B12 again.

    Regarding vitamin K... You need to take, specifically, vitamin K2. If it just says "Vitamin K" this isn't specific enough, you need to know what kind it is. Vitamin K1 is involved in blood clotting, not calcium, and should also be avoided.



  • Thanks, HB. With my results, do you think I should be on 1000 or 5000 of the Jarrows?

  • 1000mcg should be ample.

  • Isn't there an emoticon for a kiss? x

  • I'll just imagine it, thanks. :D

  • Sorry - one last little bitty ... should there be a specific (or minimal) dose of K2?

  • I just went by what it said in the Mercola articles and others on the same subject, what the reviews said on Amazon, and what the price was.

    The first Mercola link above had this to say :

    "The next best thing to dietary vitamin K2 is a vitamin K2 supplement. MK-7 is the form you'll want to look for in supplements, because in a supplement form the MK-4 products are actually synthetic. Although the exact dosing is yet to be determined,

    Dr. Vermeer recommends between 45 mcg and 185 mcg daily for adults. You must use caution on the higher doses if you take anticoagulants, but if you are generally healthy and not on these types of medications, I suggest 150 mcg daily."

  • x

  • Really interesting articles. Amazon has done well today! Ordered both the B complex and the Vit K2 - 7!!

  • P.S. Just bought the Thorne from Amazon - read the blurb and see what you mean.x

  • Hi, Bean - been on Thorne's but just found this:


    It has 900mcg of folate as compared with Thorne's 100mcg; thought you might like to know.

    S. x

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