Magnesium pills tested as simple blood pressure fix

NCT ID NCT03688503

Completed Disease control Sponsor: Brigham and Women's Hospital Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether taking a magnesium glycinate supplement (480 mg daily) for 12 weeks could lower blood pressure in adults with untreated high blood pressure. 59 participants were randomly assigned to get the supplement or a placebo. The goal was to see if this simple mineral could help control blood pressure.

What this could mean

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

Active substance: magnesium glycinate supplement
What this could lead to: If it works, this could point toward a simple, over-the-counter supplement to help manage blood pressure without prescription drugs.
What could go wrong: This is a small, early-stage trial with only 59 people. Results may not apply to everyone, and the effect might be too small to matter in real life.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

essential hypertension hypertensive disorder

As listed by the trial registrant

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

BLOOD PRESSURE

Contacts and locations

Locations

Brigham and Women's Hospital

Boston, Massachusetts, 02215, United States

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Other studies related to the condition(s) this trial covers.