Vit d question: Hi can anyone help with the... - Thyroid UK

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Vit d question

Gcart profile image
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Hi can anyone help with the dosage I take

Its Vit D3 Forte. 4000i.u (100ug)

So am I correct in thinking its a very small dose?

I think the 100 ug is 100mcg as we know it in UK ?

Do I need s higher dose ?

Thanks for any help to understand x

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Gcart
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SeasideSusie profile image
SeasideSusieRemembering

Gcart Vit D supplements generally use International Units (iu) rather than mcg (yes ug is the same as mcg). 4000iu is a decent dose, more than a maintenance dose, and if your level was Vit D level was 50 then a daily dose of 5000iu would be advised to bring it up to the recommended level of 100-150nmol/L

Your Vit D level was 70 in your post 3 months ago. Have you retested? If you've been taking 4000iu all this time, I'd retest now and see how you're doing. Are you also taking D3's important co-factors K2-MK7 and magnesium?

Gcart profile image
Gcart in reply to SeasideSusie

Thanks SS Ok I will retest and yes I have been taking K2

🙂👍🏼

Eddie83 profile image
Eddie83

Yes, 1 IU=.025 mcg. Absorption can be a problem, esp. if you have had any gut disorder. I take one Designs For Health Vitamin D Supreme every other day (5000 IU D3; 550mcg K1+K2) and my D test result was approx 50 last time.

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