| Dietary strategies to maintain adequacy of circulating 25-Hydroxyvitamin D concentrations. | |
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MedLine Citation:
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PMID: 22536758 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Abstract The importance of vitamin D intake to nutritional status is a corollary of sunshine deficit. There is a dose-response of serum 25-hydroxyvitamin D (25(OH)D) concentrations to total vitamin D intake in persons who do not receive UVB exposure. This updated summary of vitamin D intakes and sources in adults and children focuses on data from North America and Europe. We explore the evidence that intakes of vitamin D are inadequate with reference to the Institute of Medicine (IOM) Dietary Reference Intakes. Due to mandatory fortification, usual vitamin D intakes are higher in the US and Canada than most of Europe, with the exception of the Nordic countries. Intakes of vitamin D in national surveys are typically below 5 μg/d in most European countries and vary according to country-specific fortification practices, sex and age. The main source of variation is the contribution from nutritional supplements. Usual vitamin D intake estimates need to capture data on the contributions from fortified and supplemental sources as well as the base diet. The current dietary supply of vitamin D makes it unfeasible for most adults to meet the IOM Estimated Average Requirement of 10 μg/d. While supplements are an effective method for individuals to increase their intake, food fortification represents the best opportunity to increase the vitamin D supply to the population. Well-designed sustainable fortification strategies, which use a range of foods to accommodate diversity, have potential to increase vitamin D intakes across the population distribution and minimize the prevalence of low 25(OH)D concentrations. |
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Authors:
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Mairead Kiely; Lucinda J Black |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Scandinavian journal of clinical and laboratory investigation. Supplementum Volume: 243 ISSN: 0085-591X ISO Abbreviation: Scand. J. Clin. Lab. Invest. Suppl. Publication Date: 2012 |
Date Detail:
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Created Date: 2012-04-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2984789R Medline TA: Scand J Clin Lab Invest Suppl Country: England |
Other Details:
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Languages: eng Pagination: 14-23 Citation Subset: IM |
Affiliation:
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Vitamin D Research Group, School of Food and Nutritional Sciences , University College Cork , Ireland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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