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.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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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

  • Centre hospitalier départemental Vendée

    La Roche-sur-Yon, 85925, France