| Bioavailability of carotenoids. | |
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MedLine Citation:
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PMID: 10971839 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Our current knowledge about the bioavailability of provitamin A carotenoids in foods is insufficient, fragmentary and difficult to interpret. Past methods of estimating the vitamin A value of food carotenoids suffer both from uncertainty about the meaning of bioavailability and from the inadequacy of the indicators used in its determination. Reported conversion ratios of beta-carotene to vitamin A in humans in vivo, depending on conditions, range from 2:1 to 26:1 (microgram/microgram). Thus, the ratio of 6:1, devised by the World Health Organization, must be considered as a rough average estimate that is not applicable to all diets. Strategies to increase the dietary intake of carotenoid-containing foods should include measures to enhance carotenoid bioavailability. |
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Authors:
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J A Olson |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Archivos latinoamericanos de nutrición Volume: 49 ISSN: 0004-0622 ISO Abbreviation: Arch Latinoam Nutr Publication Date: 1999 Sep |
Date Detail:
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Created Date: 2000-09-25 Completed Date: 2000-09-25 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0067507 Medline TA: Arch Latinoam Nutr Country: VENEZUELA |
Other Details:
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Languages: eng Pagination: 21S-25S Citation Subset: IM |
Affiliation:
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Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Absorption Animals Biological Availability Carotenoids / pharmacokinetics* Diet Humans Vitamin A / administration & dosage, pharmacokinetics* beta Carotene / pharmacokinetics |
| Chemical | |
Reg. No./Substance:
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11103-57-4/Vitamin A; 36-88-4/Carotenoids; 7235-40-7/beta Carotene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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