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Clinical Trial Summary

The purpose of this study is to examine the effect of vitamin D supplementation on vitamin D status, immunity and physical performance.


Clinical Trial Description

Vitamin D plays a key role in bone mineralisation and has been linked to immune defence maintenance and muscle function. Vitamin D is primarily obtained from endogenous synthesis in response to skin sunlight exposure and follows a seasonal pattern; whereby, vitamin D levels peak at the end of the summer and fall to a trough during winter. If winter vitamin D levels can be increased to match those found in summer using supplementation, it is proposed sufficient vitamin D levels will improve physical performance and reduce susceptibility to illness in military recruits. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03132103
Study type Interventional
Source Bangor University
Contact Prof Neil Walsh, PhD
Phone 01248
Email n.walsh@bangor.ac.uk
Status Recruiting
Phase N/A
Start date January 6, 2016
Completion date August 31, 2017

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