Optimizing Vitamin D Status During Initial Military Training

Completed · Not applicable · Has a placebo group

Conditions studied: Bone Health, Nutrition Status

In brief

The primary objective of this randomized, double-blind, placebo-controlled trial is to determine the effect of vitamin D and calcium supplementation (800IU and 2000mg, respectively) on biochemical indicators of nutritional status and bone health in military personnel during Army basic combat training (BCT) and Air Force basic military training (BMT). The investigators hypothesize that daily supplementation with vitamin D and calcium during military training will improve vitamin D status, stabilize PTH levels, and result in improvements in markers of bone health. As a result of the investigators study design, the findings will provide critically important data regarding the concentration of vitamin D in blood necessary to stabilize PTH levels and to optimize bone formation during initial military training.

Key facts

Study ID

NCT01617109

Run by

United States Army Research Institute of Environmental Medicine

People needed

342

Starts

2012-06-01

Expected to finish

2018-05-02

Last updated by the study team

2018-10-11

Who can join

Age: 17 and older, up to 42. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Female or male US Army or US Air Force Recruits
• Participating in Basic Combat Training or Basic Military Training, respectively

You may not qualify if…

• Pregnant or breastfeeding
• History of kidney stones or kidney disease

Where it is running

• Fort Sill — Fort Sill, Oklahoma, United States
• Lackland Air Force Base — San Antonio, Texas, United States

Full record on ClinicalTrials.gov

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