I have had my B12 levels checked a few times over the last year, and each time they have been just within the recommended limits (limit 189-883, my last reading 192). I have seen a GP who said "it's fine, it's in the limit" but as I am presenting with extreme tiredness, shakes etc, thought they may offer me the injections....
What does everyone think?
Thank you.
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CRAZYFROGLADY
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Thank you, they are very interesting reads!! On the symptoms list I tick quite a few boxes, including palpitations, extreme fatigue, mood swings (v bad!!!), brittle nails, acne, and sleep disturbances! I wish I would have a GP that would take me seriously!!
You are literally only just over the cut off. The gp should be treating the symptoms not numbers. Can only suggest you ask that he give you a trial period of dosing to see if it makes a difference or find out why you have the symptoms in the first place.
l have b12 levels of 140 and my lab cut off was 110 no matter what l said about guidelines my doc would not treat full stop, get your ferritin levels checked they apparently need to be around 80 to uptake b12 properly you coul also get vit d levels checked most of us in the uk are deficient l have all three of these deficiencies but docs not interested in finding out why you will find it is the same story for a huge amount of us l use patches and sprays and have a bottle of methyl b12 and am thinking of self injecting b12d.org is a charity that will give you good info plus the b12 if needed the pa society also have good info l do agree it is a minefield good luck
its not all that low but you could do with getting it up higher my lab ranger are 13-150 you will not get any iron supplements from the docs as its too high for that but you could try spatone its a gentle iron enriched water natural there will be stronger ones you could try over the counter vit d helps a lot with bone pain and weakness hope you get on ok keep us all posted
Would just add that the problem with reference ranges is that they are indicative of the distribution in the general population. Meaning that if you randomly selected a hundred healthy people and measured their B12, this is the range of values you would find.
Unfortunately there are a host of issues with the B12 assay and only the unwise (sarcasm) try to correlate levels with symptoms. You'll find plenty on this in the references already given.
Also, if the assumption is that 2.5% are over-range and 2.5% are under-range, what happens when more than 5% should be regarded as out of range? With that 2.5% assumption built-in, all that can happen is that the excess over 5% are regarded as in-range.
(Trying to keep it simple and symmetrical - I know it doesn't fully make sense.)
B12 serum numbers are known to be inadequate as a way of diagnosing a B12 deficiency - maddening.
Suggest you send this alert by the body that regulates quality assurance on blood assays on just using B12 serum numbers - quite clear that clinical presentation cannot be ignored
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