Vitamin D is measured in the blood as 25 hydroxyvitaminD [ 25(OH)D ]
In USA: nanograms per milliliter ( ng/ml )
Outside USA: nanomols per Litre ( nmol/L )
10 ng/ml = 25nmol/L
As a supplement or medicine, Vitamin D is measured:
In USA: International Units ( IU )
Outside USA: Micrograms
1,000 IU = 25 micrograms ( often written: μg )
No-one should take "milligrams" of Vitamin D without advice from a medical professional !
For a discussion about "How much Vitamin D do I need ?" search for: "GreenVits" & read the blogs
For information about whether Vitamin D might prevent or treat more than 50 illnesses, search for: "VitaminDwiki" Note that the whole website can be viewed in 60+ languages !
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
I Was told I was low in vitamin D and read that vitamin D3 is the vitamin to take. It's all confusi?
Posted 21 Oct 2011 • 4 answers
Posted 4 Dec 2011 • 1 answer
Posted 11 Aug 2015 • 3 answers
Vitamin D Deficiency - I had low levels of the vitamin D, 25 hydroxy, 9ng/mL in D3 and D, D2 was at?
Posted 10 Jun 2016 • 0 answers
Posted 8 days ago • 1 answer