Thyroid UK
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Vitamin D level

Hi I am new, I have hypothyroidism. Could someone please advise what dose of vitamin D I need to take for a level of 30.4 nmol/L

(<25 severe vitamin D deficiency. Patient may need pharmacological preparations)

25 - 50 vitamin D deficiency. Supplementation is indicated)

50 - 75 vitamin D may be suboptimal, and long-term may lead to clinical effects. Advise on safe sun exposure and diet. Supplementation may be indicated

>75 adequate vitamin D)

Result taken October 17.

Thank you :)

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Hi Clio

Do you know if you have high antibodies as cause of your being hypo? High antibodies means it's autoimmune thyroid disease also called Hashimoto's

With Hashimoto's we tend to need higher dose of vitamin D, or might be good to use vitamin D mouth spray as it's easier to absorb that way

You could start with 2000iy or 3000iy and retest in 2-3 months. Aiming for a level of around 100nmol

You may need more or less, we are all different

It's important not to take too much, so testing twice a year recommended until you work out what dose you need to keep you level

Testing from vitamindtest.org.uk £28 postal kit

When taking vitamin D, you may want to supplement magnesium too

Lots of different options, personally I use Calm vitality magnesium powder p, cheap, easy and can start with tiny dose.

Have you also had ferritin, folate and B12 tested? These can also be too low when we are hypo

Important to always get the actual results and ranges on all tests. Good idea to keep detailed record of test results. A spreadsheet so that you can see results as they have progressed over time

But lab tests often, annoyingly change their ranges, so always need to check that

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Will post these thanks

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