Need to stop vitamin D before a vitamin D blood test?

[Pinkpetite]

Hello do I need to stop taking my vitamin D supplement before a vitamin D blood test? They are also doing a full blood count, liver function and creatinine. So I know I need to stop B vitamins and iron a week before. Wasn't sure re vitamin D.

[sophiaS1980]

i always stop everything a week before, the iron will show up high if u don't stop that, did your doctor prescribe iron for you? I ask because my doctor says 2 weeks for the iron.

[Pinkpetite in reply to sophiaS1980]

I put myself on ferrous fumarate 210mg twice a day as trying to get my ferritin past 65 - to help my thyroid. They are only doing FBC not ferritin so don't know if this makes a difference.

[userotc]

I believe not labtestsonline.org/tests/vi.... But the normal belt-braces is "Ask your healthcare practitioner or lab for specific instructions"

[Pinkpetite in reply to userotc]

They have always said nothing! Can't rely on them 😄

[thyr01d]

Too much vitamin D can be harmful so I would recommend that you carry on taking it so that your results give you correct information that you can rely on.

[Hibs1 in reply to thyr01d]

How much do you say is too much? You would need to be taking 50,000iu daily f or 6 months without co factors and a level of over at least 375nmol/L or at least 250ng/mL vitamin d and cofactors are for life or level will drop

[thyr01d in reply to Hibs1]

How much is too much depends on each individual and on their current lifestyle so I mean taking into account how much time is spent bare-skinned in good sunlight, what colour the skin is, if the diet includes supplemented foods etc etc.

[Hibs1]

No need to stop vitamin d before testing

[Pinkpetite in reply to Hibs1]

Great! Thank you. This is my first vitamin D test in years. I starting supplementing with 3,000 ius daily instead of the 800ius the drs say you need - about 2mths ago - so hoping levels will be ok.

Does it take a while to up levels?

[Hibs1 in reply to Pinkpetite]

You should see a difference after 2 months specially after that baby's dose!👍

[Pinkpetite in reply to Hibs1]

Super! Great timing then!

Is it best just to have water before the test? It's 9am.

[Hibs1 in reply to Pinkpetite]

Doesn't matter for vitamin d but don't know about the others, however I get annual bloods that include your other tests and never been told just water

[SeasideSusie Remembering]

Pinkpetite

This is the video produced by NHS lab in Birmingham which offers Vit D tests direct to the public.

If you go to near the end of the video (2min 30sec) it tells you to continue taking your Vit D but on the day of the test take it after the blood draw, not before.

youtube.com/watch?v=rxGIbHu...(Not working as expected?)

[Pinkpetite in reply to SeasideSusie]

Thank you for this 🙂