B12 Lab test

[Everdean]

Please could somebody recommend a good laboratory to test for low B12 levels.

My GP blood tests usually come back mid range but as I have so many symptoms of b12 deficiency I am considering having my own test done to see if I am not getting enough of the vitamin at the cellular level.

Thank you

[Marz]

So it would be good if you could have both Homocysteine and MMA checked. If HIGH in range then it could indicate LOW B12 at a cellular level - where it is needed 😊

[Everdean in reply to Marz]

Thank you Marz

[Everdean in reply to Marz]

Would the GP do those tests or would I have to have them done privately?

Thank you

[Marz in reply to Everdean]

Depends where you live in the UK - again I do not know which areas do it and which do not. You would have to ask and do some research. I live in Crete so am out of touch !

[Everdean in reply to Marz]

OK thank you Marz

[shaws]

I shall give you links to our two recommended labs. Both do these tests. Some would have blood drawn in an appropriate place and other tests are home ones.

thyroiduk.org.uk/tuk/testin...

Blue Horizon and Medichecks are popular home tests but some may have to be done elsewhere.

[Everdean in reply to shaws]

Thank you shaws

[Everdean in reply to Everdean]

Ive looked at these websites shaws but there are several blood tests related to B12 deficiency.

I don't know which one would be suitable for me. Any help would be appreciated. Thank you

[Gambit62 in reply to Everdean]

see comments by Marz above - MMA and homocysteine, serum/active B12 are the tests for B12 deficiency. IFA is test for PA as a specific cause of B12 deficiency.

Check with lab if you are supplementing as that will affect results - particulary in relation to IFA test.

[Everdean in reply to Gambit62]

Thank you Gambit62