Table 1.
Serum 25 (OH)D (ng/ml) | Definition | Dose of ergocalciferol/cholecalciferol | Duration |
---|---|---|---|
<5 | Severe 25(OH)D deficiency | −8,000 IU/d orally or enterally for 4 wk or (50,000 IU/wk for 4 wk); followed by 4,000 IU/d or (50,000 IU twice per mo for 2 mo) | 3 mo |
5–15 | Mild 25(OH)D deficiency | 4,000 IU/d orally or enterally for 12 wk or (50,000 IU every other wk, for 12 wk) | 3 mo |
16–30 | 25 (OH)D insufficiency | 2,000 IU daily or (50,000 IU every 4 wk) | 3 mo |