Prison vitamin d study: should inmates be tested?
NCT ID NCT02044133
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study looked at whether measuring vitamin D levels in male prisoners at the start of their sentence and again after six months is worthwhile. Fifty-four men in a French prison took part, with some tested twice and others only at six months. The goal was to see if routine vitamin D testing could help detect deficiencies in this population.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Vitamin D
- What this could lead to
- If successful, this could show that checking vitamin D levels in new prisoners helps identify deficiencies early.
- What could go wrong
- This is a small, early study with only 54 participants, so results may not apply to all prisons or populations.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Centre hospitalier départemental Vendée
La Roche-sur-Yon, 85925, France