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No association between allergy and current 25-hydroxy vitamin D in serum or vitamin D intake

Journal article
Authors Malin Barman
Karin Jonsson
Bill Hesselmar
Anna Sandin
Ann-Sofie Sandberg
Agnes E Wold
Published in Acta Paediatrica
Volume 104
Issue 4
Pages 405-413
ISSN 0803-5253
Publication year 2015
Published at Institute of Clinical Sciences, Department of Pediatrics
Institute of Biomedicine, Department of Infectious Medicine
Pages 405-413
Language en
Links dx.doi.org/10.1111/apa.12936
Keywords Vitamin D, Serum 25OHD, allergy, adolescents, diet
Subject categories Nutrition and Dietetics

Abstract

Aim

Vitamin D may be involved in allergy development, but there is conflicting evidence. We investigated if dietary intake of vitamin D and levels of 25OHD in serum differed between allergic and nonallergic adolescents and if serum 25OHD correlated with dietary intake of vitamin D or season of blood sampling.

Methods

Serum 25-hydroxy vitamin D (25OHD) levels were analysed in 13-year-old subjects with atopic eczema (n = 55), respiratory allergy (n = 55) or no allergy (n = 55). Intake of fat-containing foods was assessed by food-frequency questionnaires, and total daily vitamin D intake was calculated. Logistic regression was used to adjust for gender, parental allergy and time of blood sampling.

Results

Subjects with atopic eczema or respiratory allergy did not differ from nonallergic controls regarding serum 25OHD levels or calculated vitamin D intake. Subjects sampled in the autumn had significantly higher levels of serum 25OHD than subjects sampled in the winter or spring. Serum 25OHD levels correlated to consumption of vitamin D-fortified lean milk (p = 0.001).

Conclusion

The findings suggest no association between allergy and 25OHD levels in serum or vitamin D intake in adolescents. Serum 25OHD levels correlated to intake of vitamin D-fortified lean milk.

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