Can vitamin d help control diabetes? new trial tests high doses

NCT ID NCT07321223

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two different doses of vitamin D supplements in 108 adults with type 2 diabetes who also have low vitamin D levels. Researchers will measure changes in blood sugar and HbA1c over time to see if higher doses improve diabetes control. Participants must be aged 40-70 and taking only metformin.

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 it works, this could show that correcting vitamin D deficiency helps control blood sugar in type 2 diabetes.

What could go wrong

This is a small, early-stage trial with no placebo group, so results may not be conclusive. Vitamin D is generally safe, but high doses can cause side effects.

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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Conditions

The condition(s) this trial relates to.

diabetes mellitus type 2 diabetes mellitus vitamin D deficiency

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • PAF Hospital

    Islamabad, Pakistan