should I stop taking vitamin d3 before the blo... - Thyroid UK

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should I stop taking vitamin d3 before the blood test for vitamin d?

Xeki-Latigi profile image
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Hello, I'm new here, I want to ask you if I should stop taking vitamin d3 before the blood test for vitamin d?

I have been using for 5 weeks, vitamin d3 ampoule 300,000 IU 1ml. I drank one ampoule per week.

the level before using vitamin d3 was 14.5, now after 5 weeks it is 130.

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SeasideSusie profile image
SeasideSusieRemembering

Xeki-Latigi

Presumably the unit of measurement is nmol/L?

If so now that you have reached 130 you are within the recommended range of 100-150nmol and you should now find your maintenance dose by trial and error. You may need 2,000iu, maybe more or less, maybe more in winter than summer. We should retest twice a year when taking D3.

It isn't necessary to stop D3 before a test, just take it after the test on the day.

Are you also taking D3's important cofactors - magnesium and Vit K2-mk7? D3 aids the absorption of calcium from food and K2-mk7 directs the calcium to bones and teeth where it is needed and away from arteries and soft tissue where it can be deposited and cause problems such as calcification of arteries and kidney stones, etc. Magnesium helps the body convert D3 into it's usable form.

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