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J Allergy Clin Immunol. 2013 Feb;131(2):324-9. doi: 10.1016/j.jaci.2012.12.1562.

Vitamin D in allergic disease: shedding light on a complex problem.

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Division of Dermatology, University of California, San Diego, La Jolla, Calif, USA.


Vitamin D is unique among nutritional factors because the intake of this special vitamin represents the sum of vitamin D obtained from diet, nutritional supplements, and endogenous production after exposure to sunlight. The current recommended nutritional intake requirements reflect needs based on its established role in calcium absorption and bone health. However, recent studies have revealed that vitamin D has important functions in the immune system and might influence the course of immune-mediated disorders, including atopic dermatitis and asthma. This review discusses the scientific rationale for a role for vitamin D in immune function, gives an update on allergic disease associations with lower vitamin D serum levels, and discusses recent observations relating to vitamin D in immune function.

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