Vit D

Hi All, still struggling on I went to see my GP on Tuesday regarding low B12. raised Ferritin and depression. I have been supplementing with Jarrow B12 1000 twice a day for about a month since I last saw GP. When I saw her last month she dismissed the low B12 which was 240. When I asked should I supplement she just shrugged and said you could buy some over the counter. When I saw her on Tuesday she said she wanted to redo the blood tests plus Vit D test. I had them done yesterday, they usually take about ten days to get results, but I received a text from the surgery today informing me my Vit D is low and they have left a prescription for a supplement at the surgery. Any info or thoughts on any connections to low Vit D low Vit B and high ferritin would be much apprieciated . thanks

15 Replies

  • Your B12 needs to be up near the top of the range,I take 5000 a day.

    Google Dr Chandy - B12 for more information. Went to GP today and he asked if I was supplementing D3 ! A colleague of his told me to take no supplements. Yours must be very low if they have prescribed supplement.

    When first checked my D12 and D3 were low and ferritin high .No idea whether they are interrelated.

  • Ann22, if you're not supplementing iron, ferritin can be high due to inflammation in the body. A cold or virus at the time of testing could cause it, or musculoskeletal pain due to low vitD or B12 is another possibility.


    I am not a medical professional and this information is not intended to be a substitute for medical guidance from your own doctor. Please check with your personal physician before applying any of these suggestions.

  • Vit D info covering a small fraction of what Vit D affects -

  • Hi Not connected but only take vit D if calcium not above range. If calcium very low , below range then you need calcium to absorb the vit D.


  • . . . . . . hmmm ?

    I thought it was you need vitamin D to absorb calcium . . . . . I pretty sure that's right ( - too ?).


    Sid_Arthur X

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  • No, If calcium too high you have to stop vit D for it to come down. Endo explained when I had to come off it as my Calcium was over range, very dangerous. D does use some calcium why if calcium under range you take it with the D.


  • . . . . . . well, this is causing me some confusion.

    I believe the evidence and understanding is that vitamin D is required to absorb the calcium into the bone . . . . . and a deficiency of it would prevent this absorption of calcium ( - this maybe giving higher blood values). So, high blood levels of calcium could indicate a vitamin D deficiency, and this suspicion could be confirmed by a test.

    Could your endo be mistaken ? I'd be willing to bet a £1 s/he is, if the advice is to stop "vit D" supplementation on the result of the calcium blood test alone. Please do clarify if I've misunderstood what you've said.


    Sid_Arthur X

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  • High calcium may indicate hyperparathyroidism, usually this is caused by a benign adenoma but occasionally low vitd is the culpret. If this is the case then vitd is given, if however an adenoma is the reason then vitd should not be taken as it will further increase calcium.

    So if calcium is high the reason must be investigated before taking vitd as hypercalcemia is serious.

  • Yes, that is right and two other consultants agree with her. If you ask a good doctor you will find I am right even though I have osteomalacia.Calcium, above range can cause amongst others kidney and heart conditions.


  • As Bantam says, hyperparathyroidism can be involved - a whole issue in itself.

    However, I remain perplexed by what you are being told.

    The following Radio4 programme is I think worth a 27min listen:

    Prof Vieth on it explains those of us who drink milk and eat cheese are, in the main, getting plenty of calcium but are short of vitamin D needed to absorb it ( I seem to recall). Do plse have a listen and see if the view agrees with that being put to you . . . . . or differs from it ? Perhaps we can arrive at a consensus !

    Take care.

  • I am sorry you cannot accept a fact.


  • Ohhhh, Jackie ! That sounds a little harsh.

    I'm trying to understand what the fact IS in this case !

    Have you decided what you're being told is so right that any contradictory seeming information, from the likes of Prof Vieth are not worth considering ? His credentials seem impressive enough.

    What is the fact with this: is vitamin D necessary to absorb calcium . . . . or the other way around ?

    Best wishes.

  • Hi Sorry if harsh but calcium above range is so dangerous. I see 3 top consultants. Two of them the most eminent in the country. I think you confusion is because the D needs calcium if calcium below range but if above range D makes the calcium higher.

    Best wishes,


    Best wishes,


  • Hi Ann,

    I would highly recommend you to consider this article ( - at least) before beginning to take "vit D3" which could be VERY IMPORTANT ( - or not) in any one case:

    The standard 'vit D' test which measures calcidiol is a way for only confirming the level of this - what THAT result MEANS ( - esp. when 'low') is dependent on what else is happening in the body, including whether one has the type of inflammation-causing immune response using this up which the author, Meg Mangin writes about. Under these circumstances, this body of opinion would ADVISE AGAINST BOTH supplementation and sun-exposure for ( -empirical & conceptual) reasons given.

    If you have no chronic illness, it may/could be safe or reasonable to assume that such an immune response is unlikely . . . . . . . but if you do have a chronic illness, I'd ask you again to consider this article carefully.

    All the best !

  • Thank you all for your help. It is all very confusing, so onwards and upwards

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