title: Should RDA values be tailored to meet the needs of their users?
mesh_terms: D002338:Carotenoids / Q000627:therapeutic use; D004032:Diet; D006801:Humans; D008099:Liver / Q000378:metabolism; D009307:National Academy of Sciences, U.S.; D009369:Neoplasms / Q000517:prevention & control; D009751:Nutritional Requirements; D014481:United States; D014801:Vitamin A / Q000097:blood / Q000378:metabolism / Q000627:therapeutic use; D014802:Vitamin A Deficiency / Q000378:metabolism
chemical_list: D014801:Vitamin A; D002338:Carotenoids