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The objectives of this study are 1) to assess the prevalence of vitamin D deficiency in a group of sub elite athletes and 2) to identify seasonal changes in vitamin D status and the effect that supplementation may have during the course of a year.
The study is a double blinded parallel study design.
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Study population: 175 elite/ sub elite athletes, male and female, aged 18-60y, from a variety of sport disciplines
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153 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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