ng/ml

nmol/l

Normal

30 - 100

75 - 250

Hypovitaminosis

<30

<75

Mild deficiency or insufficiency

20.8 - 30

52 - 75

Moderate deficiency

12 - 20.8

30 - 52

Severe deficiency

<12

<30

Undetectable vitamin D

<4

<10

Excess

>100

>250

Intoxication

>150

>375