Vitamin D project

        Vitamin D, the "sunshine vitamin", plays a critical role in bone metabolism and many cellular and immunological processes. Recent studies in Canada, including our own research (see the figure showing the results of our pilot study below), have indicated that the prevalence of vitamin D insufficiency in healthy adults is surprisingly high, particularly during the winter months. In collaboration with investigators from the University of Toronto (Dr. Reinhold Vieth and Dr. David Cole) and the University of Saskatchewan (Dr. Susan Whiting), we are evaluating the seasonal variation of vitamin D levels in healthy young adults of diverse ancestry living in the Greater Toronto Area.  This study will explore the role of important factors (skin pigmentation, vitamin D intake, sun exposure) in vitamin D concentrations and will assist in determining the need for vitamin D supplementation to compensate for the relative lack of sunshine experienced by Canadians.

 



 

 

 

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Serum 25(OH)D concentrations during the winter in a sample of healthy young adults of diverse ancestry living in the Greater Toronto Area. From Gozdzik et al. 2008. BMC Public Health (See publication list for additional information).