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dc.contributor.authorO'Neill, Colette M
dc.contributor.authorKazantzidis, Andreas
dc.contributor.authorRyan, Mary J
dc.contributor.authorBarber, Niamh
dc.contributor.authorSempos, Christopher T.
dc.contributor.authorDurazo-Arvizu, Ramon A.
dc.contributor.authorJorde, Rolf
dc.contributor.authorGrimnes, Guri
dc.contributor.authorEiriksdottir, Gudny
dc.contributor.authorGudnason, Vilmundur
dc.contributor.authorCotch, Mary Frances
dc.contributor.authorKiely, Mairead
dc.contributor.authorWebb, Ann R
dc.contributor.authorCashman, Kevin D
dc.date.accessioned2017-02-27T13:40:06Z
dc.date.available2017-02-27T13:40:06Z
dc.date.issued2016-08-30
dc.description.abstractLow vitamin D status is common in Europe. The major source of vitamin D in humans is ultraviolet B (UVB)-induced dermal synthesis of cholecalciferol, whereas food sources are believed to play a lesser role. Our objectives were to assess UVB availability (Jm−2) across several European locations ranging from 35° N to 69° N, and compare these UVB data with representative population serum 25-hydroxyvitamin D (25(OH)D) data from Ireland (51–54° N), Iceland (64° N) and Norway (69° N), as exemplars. Vitamin D-effective UVB availability was modelled for nine European countries/regions using a validated UV irradiance model. Standardized serum 25(OH)D data was accessed from the EC-funded ODIN project. The results showed that UVB availability decreased with increasing latitude (from 35° N to 69° N), while all locations exhibited significant seasonal variation in UVB. The UVB data suggested that the duration of vitamin D winters ranged from none (at 35° N) to eight months (at 69° N). The large seasonal fluctuations in serum 25(OH)D in Irish adults was much dampened in Norwegian and Icelandic adults, despite considerably lower UVB availability at these northern latitudes but with much higher vitamin D intakes. In conclusion, increasing the vitamin D intake can ameliorate the impact of low UVB availability on serum 25(OH)D status in Europeen_US
dc.description.sponsorshipThe research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 613977 (ODIN).en_US
dc.descriptionSource: <a href=http://dx.doi.org/10.3390/nu8090533>doi: 10.3390/nu8090533</a>en_US
dc.identifier.citationO'Neill CM et al. Seasonal changes in vitamin D-effective UVB availability in Europe and associations with population serum 25-hydroxyvitamin D. Nutrients. 2016;8(9)en_US
dc.identifier.cristinIDFRIDAID 1422268
dc.identifier.doi10.3390/nu8090533
dc.identifier.issn2072-6643
dc.identifier.urihttps://hdl.handle.net/10037/10372
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.journalNutrients
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Medical disciplines: 700::Clinical medical disciplines: 750en_US
dc.subjectVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750en_US
dc.titleSeasonal changes in vitamin D-effective UVB availability in Europe and associations with population serum 25-hydroxyvitamin Den_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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