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Vitamin D deficiency at the Arctic Circle a study in food-allergic adolescents and controls
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics. (Arcum)
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
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2013 (English)In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 102, no 6, 644-649 p.Article in journal (Refereed) Published
Abstract [en]

Aim At the extremes of latitude, UVB intensity is insufficient for adequate vitamin D synthesis in winter. Fatty fish, vitamin D enriched milk, margarine and eggs are main dietary sources of vitamin D. Their elimination may increase the risk of vitamin D deficiency. The aim was to assess vitamin D status in food-allergic adolescents eliminating milk, egg and/or fish compared with adolescents on normal diets. Methods In winter, vitamin D intake was assessed by a food frequency questionnaire in 20 food-allergic adolescents and 42 controls in the population-based Obstructive Lung Disease In Northern Sweden (OLIN) cohort studies. Vitamin D supplementation was queried. Serum 25-hydroxyvitamin D [S-25(OH)D] and S-parathormone (S-PTH) levels were determined. Results Mean (SD) dietary vitamin D intake was 7.9 (3.6) g/day in allergic adolescents and 7.8 (3.4) in controls (p>0.05). Mean (SD) S-25(OH)D levels in supplement consumers were 44 (18) nmol/L compared with 35 (10) in non-consumers (p=0.03). S-25(OH)D and S-PTH levels were similar in food-allergic adolescents and controls (p>0.05). Eighty-two percentage had deficient S-25(OH)D levels <50nmol/L, and none reached levels >75nmol/L. Conclusion Vitamin D deficiency was as common in food-allergic adolescents as in controls although the vitamin D intake met national recommendations. Large-scale studies on the prevalence of vitamin D deficiency in this region are needed.

Place, publisher, year, edition, pages
Hoboken, NJ, USA: Wiley-Blackwell, 2013. Vol. 102, no 6, 644-649 p.
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Medical and Health Sciences
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URN: urn:nbn:se:umu:diva-73560DOI: 10.1111/apa.12172ISI: 000318562500031OAI: oai:DiVA.org:umu-73560DiVA: diva2:632930
Available from: 2013-06-25 Created: 2013-06-25 Last updated: 2017-12-06Bibliographically approved

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Öhlund, IngerNordström, LisbethWinberg, AnnaRönmark, EvaWest, Christina E.

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Persson, KarinÖhlund, IngerNordström, LisbethWinberg, AnnaRönmark, EvaWest, Christina E.
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