Serum Magnesium and Vitamin D Levels as Indicators of Asthma Severity

Table 1

Ranges for 25-hydroxy vitamin D [13].

Interpretation	25(OH) D level
Normal	30–60 ng/mL
Deficiency	<20 ng/mL (<50 nmol/L)
Insufficiency	<30 ng/mL (<75 nmol/L)