Take vitamin D by mouth as directed. Vitamin D is best absorbed when taken after a meal but may be taken with or without food. Alfacalcidol is usually taken with food. Follow all directions on the ...
Take vitamin D by mouth as directed. Vitamin D is best absorbed when taken after a meal but may be taken with or without food. Alfacalcidol is usually taken with food. Follow all directions on the ...
Vitamin D has two forms: vitamin D2 (ergocalciferol) derived from plant-based sources and vitamin D3 (cholecalciferol ... for vitamin D measured in international units (IU), as follows: Vitamin ...
The average adult needs 600 international units, or IU, of vitamin D per day, whereas older adults may need around 800 IU ... or ergocalciferol, and D3, or cholecalciferol.