hypothyroidism and B12 deficiency: Hi all, should... - Thyroid UK

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hypothyroidism and B12 deficiency

sunnydr profile image
12 Replies

Hi all, should B12 levels be checked in all cases of Hashimoto's hypothyroidism?

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sunnydr profile image
sunnydr
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Clutter profile image
Clutter

Sunnydr,

It's not part of a thyroid function test. It's been observed that thyroid patients often have low/deficient ferritin, vitamin D, B12 and folate and that's why members are advised to have them checked if they are still symptomatic after being optimally dosed on Levothyroxine.

sunnydr profile image
sunnydr in reply toClutter

thank you for your reply. It's a good idea to check these but you're not automatically checked for these deficiencies if you are diagnosed with hypothyroidism? is this correct?

Clutter profile image
Clutter in reply tosunnydr

Sunnydr,

Correct, you are not automatically tested for those deficiencies.

Gambit62 profile image
Gambit62

to expand on Clutter 's response

low iron is generally the first indication of gastric problems in hashi's patients. Ferritin is a generally a good measure for this but it isn't the only measure and ideally shouldn't be taken as a single indicator - eg if ferritin is low then check that other indicators are low rather than assuming that iron is low.

serum B12 is the usual test for B12 deficiency but it is a difficult test to interpret as the normal range generally misses 25% of people who are B12 deficient. Macrocytosis (larger rounder red blood cells is a common symptom of B12 deficiency but also isn't present in 25% of people presenting with B12 deficiency, so there isn't really a good test for monitoring B12 levels - which is why you need to look at symptoms - but that's also difficult because of the overlap with thyroid symptoms.

folate testing isn't prone to the same problems.

not clear on the link with vitD

SlowDragon profile image
SlowDragonAdministrator

But in future hopefully NICE guidelines will recommend just this

That ALL Hashimoto's patients should be routinely tested for low vitamin D, folate, ferritin and B12

All are extremely common

Sadly very common either never to be tested, or low results ignored or inadequately treated

There are thousands of patients turn up here like this day in day out.

B12 injections are now available from Blue Horizons

Gambit62 profile image
Gambit62 in reply to

injections or tests

in reply toGambit62

Test first then post then action OK?

Gambit62 profile image
Gambit62 in reply to

I don't understand what you are saying.

I am not aware that blue horizons provide any medical supplies - they undertake testing. I can't find any reference on their website to providing medications to treat conditions.

injectable B12 can only be supplied in the UK for medical purposes if you have a prescription from a doctor.

helvella profile image
helvellaAdministrator in reply toGambit62

Gambit62,

It's new!

b12horizon.co.uk/

Gambit62 profile image
Gambit62 in reply tohelvella

yes, just noticed the the other post - about 100x the cost of sourcing for self injection so I don't think many members on the PAS forum will be opting for it.

in reply toGambit62

I received an email yesterday from Blue Horizon. It stated that they were now doing B12 injections either with a nurse at home or at a BMI hospital. I thought that you could order online they have doctors working for them.

More details to follow

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