What Does 1000 Iu Mean. As of 2010 the recommended daily allowance of vitamin d is 600 international units for people ages 1 to 70 years or for women who are pregnant or breast feeding. The current recommendations suggest consuming 400 800 iu 10 20 mcg of vitamin d per day.
Add message report see all. The current recommendations suggest consuming 400 800 iu 10 20 mcg of vitamin d per day. It s a symbol for micrograms which can also be called mcg.
A 1 000 international unit dose of vitamin d is 25 micrograms which converts to approximately 0 03 milligrams according to mayo clinic.
Sallysolardel tue 01 sep 20 20 15 39. Just be aware that iu is a standardized gauge of a supplement s biological activity. The definition of an international unit iu is generally arbitrary technical and eminently forgettable. The usual dose of vitamin d 3 cholecalciferol used to treat adults with a vitamin d deficiency is 1000 iu once daily.