Blood pressure

Magnesium

Magnesium supplementation may modestly lower blood pressure in pooled trials.

moderate evidence

Direction: decrease

Magnitude: unknown

Human evidence reviewed

Study context

Population: Adults with and without hypertension

Studied dose: Varies or not established

Duration: Varies across reviewed studies

Last reviewed: 2026-09-16

Limitations & caveats

  • The average effect is small and varies across trials.

Sources

NIH ODS: Magnesium — Health Professional Fact SheetExpert or government fact sheet · NIH Office of Dietary Supplements · supportsOpen ↗

Source type and claim strength are separate. A fact sheet summarizes underlying research; its link is not an individual clinical trial.