Evaluation of Calcium and Vitamin D Supplementation During Marine Corps Training



Status:Recruiting
Conditions:Orthopedic
Therapuetic Areas:Orthopedics / Podiatry
Healthy:No
Age Range:17 - Any
Updated:4/21/2016
Start Date:July 2015
End Date:June 2016
Contact:Erin Gaffney-Stomberg, Ph.D., R.D.
Email:erin.g.stomberg.civ@mail.mil
Phone:508-233-5960

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Evaluation of Calcium and Vitamin D Supplementation for Optimizing Bone Health During Marine Corps Recruit Training

The primary objective of this randomized, double-blind, placebo-controlled trial is to
determine the efficacy and effectiveness of Ca and vitamin D supplementation provided daily
throughout Marine Corps recruit training on maintenance of PTH and indices of bone strength
in Marine Corps recruits. The investigators hypothesize that Ca+D will prevent elevations in
PTH and result in greater increases in indices of bone strength compared to placebo.

Military recruits undergoing initial military training (IMT) are 17 times more likely to
develop stress fractures compared to active duty service members. Up to 800 male and female
recruits will be enrolled at the MCRD, Parris Island, SC over two seasons (summer/fall and
winter/spring) in order to account for seasonal variation in vitamin D status. Ca (2000
mg/d) and vitamin D (1000 IU/d) will be supplied as either capsules or a fortified food
product daily throughout training. This study will provide novel data for the military,
medical and scientific communities regarding the relationship between Ca and vitamin D
supplementation and biomarkers of immune function, and the requirements for calcium and
vitamin D to support bone health during IMT.

Inclusion Criteria:

- Male or female Marine Corps recruit at least 17 years of age.

Exclusion Criteria:

- Pregnant or breastfeeding

- History of kidney stones or kidney disease

- History of endocrine disorders

- Allergies to any component of the food product bar
We found this trial at
1
site
Parris Island, South Carolina 29905
Principal Investigator: Erin Gaffney-Stomberg, Ph.D., R.D.
?
mi
from
Parris Island, SC
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