Table 1.

Diagnostic levels of vitamin D.

1,25(OH)2D level (ng/mL)	1,25(OH)2D level (nmol/L)	Laboratory diagnosis
<10	<25	Severe deficiency
<20	<50	Deficiency
20–30	50–75	Insufficiency
30–100	75–250	Normal in sunny countries
>100	>250	Excess
>150	>325	Intoxication