Calculated daily vitamin D3 dose for achieving in vitamin D-deficient individuals target 25-hydroxyvitamin D levels of 50 nmol/L and 75 nmol/L, respectively
| 30-year-old person | 70-year-old person | |
|---|---|---|
| Target 25(OH)D level 50 nmol/L | ||
| 50 kg body weight | 9 micrograms (360 IU) | 5 micrograms (200 IU) |
| 75 kg body weight | 13.5 micrograms (540 IU) | 7.7 micrograms (308 IU) |
| 100 kg body weight | 18 micrograms (720 IU) | 10 micrograms (400 IU) |
| Target 25(OH)D level 75 nmol/L | ||
| 50 kg body weight | 42 micrograms (1680 IU) | 24 micrograms (960 IU) |
| 75 kg body weight | 63 micrograms (2520 IU) | 36.5 micrograms (1460 IU) |
| 100 kg body weight | 84 micrograms (3360 IU) | 49 micrograms (1960 IU) |
Based on a systematic review of 94 cohort studies that included 11,566 supplemented individuals (Zittermann et al21). Baseline 25(OH)D level 25 nmol/L.