qu'est-ce que c'est? what is that? what is it? what does that mean? Synonyms kÃ©saco; Related terms . qu'est-ce que
Vitamins A, D and E are fat-soluble vitamins measured in international units. An international unit, or IU, is used to measure fat-soluble vitamins. Vitamins A, D and E are measured using international units to calculate recommended intakes, deficiencies and toxicities for healthy people. Recommendations vary based on age and gender.
That's how vitamin D is measured. The Institute of Medicine, a nonprofit organization that gives expert advice on health, recommends that adults age 19 to 70 get 600 IU a day. If you're older than 70, you need 800 IU a day. For calcium, the amount you need depends on your age and sex. 1  All adults 19-50: 1,000 milligrams. 2  Adult men 51-70: 1,000 milligrams. 3  Adult women 51-70: 1,200 milligrams.  All adults 71 and older: 1,200 1  milligrams. Pregnant/breastfeeding women: 1,000 milligrams.  Pregnant teens: 1,300 milligrams.