Skip to main content
editorial
. 2021 Jan 21;8(2):77–78. doi: 10.1016/j.aimed.2021.01.003

Table 1.

Classification of Vitamin-D levels (serum 25(OH)D levels) and recommended oral Vit-D dose [9].

Classification Nanograms (ng/ml) Nanomoles (nmol/l) Recommended oral VitD dose
Normal or optimal ≥30 ≥75–120 400–4000 IU/day
Insufficient 21–29 51–74 4000–6000 IU/day
Deficient 11–20 26–50 7000 IU/day
Severely deficient (often not distinguished from deficient) <10 25 or less 10,000 IU/day for 1 month