Insufficient autumn vitamin D intake and low vitamin D status in 7-year-old Icelandic children

Bibliographic Data

ID15097006
AuthorsAdda Bjarnadottir (Reykjavík University, corresponding author), Asa Gudrun Kristjansdottir (Reykjavík University), Hannes Hrafnkelsson (University of Iceland), Erlingur Jóhannsson (0000-0002-8028-7851, University of Iceland), Kristjan Thor Magnusson, Inga Thorsdottir, Inga Þórsdóttir (0000-0002-2946-287X, Reykjavík University)
Year2015
Volume18
Issue2
Pages208-217
Publication date2015-02-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenuePublic Health Nutrition (JOURNAL)
Journal identifiersISSN: 1368-9800 • E-ISSN: 1475-2727
PublisherCambridge University Press (CUP) (PUBLISHER)
DOI10.1017/s1368980013003558
PMID24476995
OpenAlexW2134102439
LanguageEN
Citations received3
References cited38

Objective The aim was to investigate autumn vitamin D intake and status in 7-year-old Icelanders, fitting BMI and cardiorespiratory fitness as predictors. Design Three-day food records and fasting blood samples were collected evenly from September to November, and cardiorespiratory fitness was measured with an ergometer bike. Food and nutrient intakes were calculated, and serum 25-hydroxyvitamin D (s-25(OH)D) and serum parathyroid hormone were analysed. Suboptimal vitamin D status was defined s-25(OH)D Setting School-based study in Reykjavik, Iceland in 2006. Subjects Of the 7-year-olds studied ( n 265), 165 returned valid intake information (62 %), 158 gave blood samples (60 %) and 120 gave both (45 %). Results Recommended vitamin D intake (10 μg/d) was reached by 22·4 % of the children and 65·2 % had s-25(OH)D v . 43·2 nmol/l, respectively; P P P P P Conclusions A minority of children followed the vitamin D recommendations and 65 % had suboptimal vitamin D status during the autumn. Week of autumn was more strongly associated with vitamin D status than diet or cardiorespiratory fitness, which associated with vitamin D status to a similar extent. These results demonstrate the importance of sunlight exposure during summer to prevent suboptimal vitamin D status in young schoolchildren during autumn in northern countries. An increased effort is needed for enabling adherence to the vitamin D recommendations and increasing outdoor activities for sunlight exposure

Animal science · Biology · Calcium · Cardiorespiratory fitness · Parathyroid hormone · Vitamin · Vitamin D and neurology · vitamin D deficiency · Medicine · Nutritional Studies and Diet · Obesity, Physical Activity, Diet · Vitamin D Research Studies · Endocrinology · Internal Medicine

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