Magnesium pills may improve blood sugar in type 2 diabetes

NCT ID NCT05774015

Completed Disease control Sponsor: Sultan Qaboos University Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested whether taking magnesium oxide tablets (500 mg daily) for up to 12 months could improve blood sugar control in adults with type 2 diabetes. Researchers measured changes in HbA1c and fasting blood glucose, and tracked hospital visits. The goal was to see if magnesium, guided by a specific blood test (ionized magnesium), could help manage diabetes better than a placebo.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Magnesium oxide tablets (500 mg, 302 mg elemental magnesium)
What this could lead to: If magnesium supplements prove effective, this could offer a simple, low-cost way to help manage blood sugar in type 2 diabetes.
What could go wrong: This is a completed trial, but results are not yet widely confirmed. Magnesium supplements may not work for everyone and can cause digestive side effects. Always consult a doctor before taking supplements.

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Conditions

The condition(s) this trial relates to.

type 2 diabetes mellitus

As listed by the trial registrant

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

MAGNESIUM DISORDER TYPE 2 DIABETES

Contacts and locations

Locations

Mohammed AlZa'abi

Muscat, Oman

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