532
Participants
Start Date
December 1, 2014
Primary Completion Date
June 10, 2016
Study Completion Date
June 10, 2016
25,000 IU
Vitamin-D3 supplementation providing 25,000 IU administered orally every two months (equivalent to \~400 IU/d);
50,000 IU
Vitamin-D3 supplementation providing 50,000 IU administered orally every two months (equivalent to \~800 IU/d);
Placebo
A placebo (administered orally every two months) supplementation control group.
University of Surrey, Guildford
Institute of Naval Medicine, Gosport
Institute of Naval Medicine
UNKNOWN
CTRM Lympstone
UNKNOWN
Navy Command Headquarters
UNKNOWN
University of Surrey
OTHER