Table 1.
Definitions of vitamin D deficiency and sufficiency according to different authorities [4]
| Plasma 25(OH)D concentration (nmol/L) | IOM | Endocrine Society | EFSA | SACN | ECTS |
|---|---|---|---|---|---|
| < 25/30 | Deficient | Deficient | Deficient | Deficient | Severely deficient |
| 25–50 | Uncertain | Insufficient | Deficient | - | Deficient |
| 50–75 | Sufficient | Insufficient | Sufficient | - | Sufficient |
| > 75 | - | Sufficient | - | - | - |
IOM Institute of Medicine, EFSA European Food Safety Authority, SACN Scientific Advisory Committee on Nutrition, ECTS European Calcified Tissue Society