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.
Experts recommend 600 international units (IU) of vitamin D per day for adults up to age 70, and 800 IU for people 71 and older. If youâre not getting enough from sunlight and food, you may need to take a supplement. You can get vitamin D in multivitamins and also in combination with a calcium supplement, as well as on its own