# Vitamin D Supplementation in the Armed Forces

> **NCT03963128** · NA · UNKNOWN · sponsor: **University of Surrey** · enrollment: 4450 (estimated)

## Conditions studied

- Stress Fracture
- Injury

## Interventions

- **DIETARY_SUPPLEMENT:** Supplementation Vitamin D3
- **DIETARY_SUPPLEMENT:** Placebo

## Key facts

- **NCT ID:** NCT03963128
- **Lead sponsor:** University of Surrey
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2017-11-06
- **Primary completion:** 2023-12
- **Final completion:** 2023-12
- **Target enrollment:** 4450 (ESTIMATED)
- **Last updated:** 2019-05-24

## Collaborators

- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03963128

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03963128, "Vitamin D Supplementation in the Armed Forces". Retrieved via AI Analytics 2026-07-07 from https://api.ai-analytics.org/clinical/NCT03963128. Licensed CC0.

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