| Vitamin A in dietary supplements and fortified foods: too much of a good thing? | |
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MedLine Citation:
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PMID: 12963949 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Vitamin A consumption by many Americans is quite high, in part because of the consumption of fortified foods and the use of vitamin supplements. Most multivitamin supplements provide two or more times the recommended dietary allowance (RDA) for vitamin A because the daily value (DV) is based on 1968 and not current RDAs. Consumption of just one multivitamin often provides excessive vitamin A, the majority of it as preformed vitamin A esters. Given recent epidemiologic evidence that suggests a link between chronic intakes of vitamin A that exceed the RDA and hip fractures, it may be time to reexamine food and supplement fortification policies and to discontinue the clinical practice of prescribing two multivitamins to the elderly and other patients whose needs for certain micronutrients are high. |
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Authors:
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Kristina L Penniston; Sherry A Tanumihardjo |
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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, P.H.S. |
Journal Detail:
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Title: Journal of the American Dietetic Association Volume: 103 ISSN: 0002-8223 ISO Abbreviation: J Am Diet Assoc Publication Date: 2003 Sep |
Date Detail:
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Created Date: 2003-09-09 Completed Date: 2003-10-23 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7503061 Medline TA: J Am Diet Assoc Country: United States |
Other Details:
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Languages: eng Pagination: 1185-7 Citation Subset: AIM; IM |
Affiliation:
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University of Wisconsin Hospital and Clinics, Madison, WI 53706, USA. krispenn@nutrisci.wisc.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Diet* Dietary Supplements* Female Food, Fortified* Health Humans Male Nutrition Policy Nutritional Requirements Nutritional Status Nutritive Value United States Vitamin A / administration & dosage*, adverse effects* |
| Grant Support | |
ID/Acronym/Agency:
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DK61973-01/DK/NIDDK NIH HHS |
| Chemical | |
Reg. No./Substance:
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11103-57-4/Vitamin A |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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