Too high active b12: Goodmorning Friends I have... - Thyroid UK

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Too high active b12

Assiya profile image
7 Replies

Goodmorning Friends I have an active b12 of 116. Wat too high. Anyone knows what causes it and what i indicates this? My high ths of 20 or related to liver or kidney disease?

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Assiya profile image
Assiya
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SeasideSusie profile image
SeasideSusieRemembering

Assiya

Who says your result is too high?

What is the result?

What is the unit of measurement?

The company here in the UK which does Active B12 for the public uses the unit of measurement pmol/L and a reference range of 37.5 - 188. My level in January this year was 162pmol/L and I have no problem with that as it's in range.

Assiya profile image
Assiya in reply toSeasideSusie

I am in Holland. First time I get tested active, its between 19 and 117 as I can see.

Other times b12 was tested which was low than high due to b12 pills but havent taken them since many months.

I read this academic.oup.com/qjmed/arti...

SeasideSusie profile image
SeasideSusieRemembering in reply toAssiya

If you're worried I'd speak to your doctor.

Assiya profile image
Assiya in reply toSeasideSusie

Yes I will thank you

SlowDragon profile image
SlowDragonAdministrator in reply toAssiya

It takes many many months for B12 levels to drop after stopping B12 supplements

Gambit62 profile image
Gambit62

The most likely reason for the raised active B12 was the supplements.

The time taken to remove B12 from your blood can vary considerably from individual to individual - for most people it takes 3-6 months but for some it can take up to 4 years.

As Seaside Susie says - you should see your doctor if you are concerned that kidney function may be an issue - the tests for liver and kidney function are quite straightforward.

Assiya profile image
Assiya in reply toGambit62

Thanks wil do.

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