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.
For those 71 years or older, the RDA is 20 Î¼g per day (800 IU per day). For infants, the IOM could not determine an RDA due to a lack of data. However, the IOM set an Adequate Intake level of 10 Î¼g per day (400 IU per day), which should provide sufficient vitamin D.