1) Need for immediate hospital admission 2) Known hypercalcemia or hyperparathyroidism 3) Significant kidney disease needing dialysis 4) Known kidney stone or nephrocalcinosis 5) Pregnancy or no-anti-conception in fertile women* 6) Regular user of supplemental Vitamin D (>=20 µg /day > one month) or 7) Known intolerance to Vitamin D

1) Need for immediate hospital admission 2) Known hypercalcemia or hyperparathyroidism 3) Significant kidney disease needing dialysis 4) Known kidney stone or nephrocalcinosis 5) Pregnancy or no-anti-conception in fertile women* 6) Regular user of supplemental Vitamin D (>=20 µg /day > one month) or 7) Known intolerance to Vitamin D