Epidemic of Vitamin D Deficiency and Its Management: Awareness among Indian Medical Undergraduates

Table 2

Vitamin D status in relation to 25 (OH) levels [30, 31].

IOM (Institute of Medicine)
Severe deficiency	<5 ng/mL
Deficiency	<15 ng/mL
Sufficiency	>20 ng/mL
Risk of toxicity	>50 ng/mL
US Endocrine Society Classification
Deficiency	<20 ng/mL
Insufficiency	21–29 ng/mL
Sufficiency	>30 ng/mL
Toxicity	>150 ng/mL

(OH)D = 25-hydroxycholecalciferol.