title: beta-Carotene supplements cannot meet all vitamin A requirements of vitamin A-deficient rats.
authors.affiliation: University of Mainz, Germany.
authors.forename: H K
authors.initials: HK
authors.lastname: Biesalski
authors.forename: H
authors.initials: H
authors.lastname: Weiser
mesh_terms: D000818:Animals; D002338:Carotenoids / Q000378:metabolism* / Q000494:pharmacology; D007536:Isomerism; D007668:Kidney / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008168:Lung / Q000378:metabolism; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D014132:Trachea / Q000378:metabolism; D014801:Vitamin A / Q000378:metabolism*; D014802:Vitamin A Deficiency / Q000378:metabolism*; D019207:beta Carotene
chemical_list: D019207:beta Carotene; D014801:Vitamin A; D002338:Carotenoids