Thyroid UK

Vit d blood test

Am hypothyroid and doctor' has prescribed vit d 2000 IU daily night after food , since hypothyroid.. til now I have not taken vit d blood test.. now planning to check my vit d level... The day before takin blood test ,tat night should I take vitd tablet and then take blood test the next morning ( to know my correct vit d level or without taking vitd I should check blood test?

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You don't have to leave off your Vit D supplement, just take it after the test on the day.

You should take D3 with the fattiest meal of the day, whenever that is, it is fat soluble and needs fat to be absorbed.

Can you double check what dose you have been prescribed. Is it 2000mcg or 2000IU? There is a massive difference. He really should have tested before prescribing, excess Vit D is stored and can reach toxicity level so it is foolish to prescribe without knowing if you need it or how much.

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Sorry it's 2000 IU only.. he prescribed.... Ya afraid of toxity only thought of takin vit d blood test ... So after taking blood tests u Askin me to take vit d the night !

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See what your test result comes back at. The level recommended by the Vit D Council is 100-150nmol/L. We all need different levels of supplementation. My Vit D level is optimal, I keep it at around 150nmol/L and I need 4000iu in the winter and 2000iu in the summer to maintain that level, and I test twice a year with City Assays so that I know my level vitamindtest.org.uk/index.html

Post your results when you get it and we can see if you are taking the right amount. There are also cofactors that are important when taking D3 vitamindcouncil.org/about-v...

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Thanks alot 😊 what are the other things I need to check for hypothyroid??

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Ferritin (needs to be at least 70, preferably half way through it's range)

B12

Folate

And for thyroid tests

TSH

FT4

FT3 (important to see if you are converting T4 to T3 well enough)

Thyroid Antibodies - - TPO and TG if not already done.

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Thank u , is it compulsory to check ferritin and folate for hypothyroid?? And is ( iron ) and ( sugar ) not needed ?

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Doctor won't think it's compulsory, they only go by TSH and think that's enough. Patient experience tells us that optimal vitamins and minerals are necessary for thyroid hormone to work.

Ferritin tells you what your iron store is like. If it's low then an iron panel and full blood count will indicate if there's any anaemia.

Sugar - testing for diabetes is not usually done, if it's in the family or you want to rule it out then test, I did mine privately.

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Thank u so much 🙏

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