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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Prog Cardiovasc Dis. 2013 Nov-Dec;56(3):261–269. doi: 10.1016/j.pcad.2013.10.015

Table. Institute of Medicine and Endocrine Society Vitamin D Thresholds1-2.

Institute of Medicine Endocrine Society
Vitamin D Status 25(OH)D (ng/mL) Vitamin D Status 25(OH)D (ng/mL)
Deficiency <12 Deficiency <20

Inadequacy 12-19 Insufficiency 21-29

Sufficiency 20-50 Sufficiency 30-100

Possible Harm >50