Magnesium and heart
What 2 graded rows on magnesium agree on for heart, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Magnesium page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Magnesium page, with its PubMed record.
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Magnesium and heart
2 rows · 2,192 peopleSplit. 1 row found an improvement and 1 had mixed results.
- AGrade A× 1
- CGrade C× 1
- Rows
- 2
- Trials
- 2
- At least: a review without a trial count
- People
- 2,192
- Pooled reviews may count some twice
What the rows share
From the rowsThe best-graded row, grade A, is a meta-analysis of 2,028 people (2016) and found an improvement.
The rows run from 164 to 2,028 people, published from 2016 to 2022: 1 pooled review and 1 single study.
The rows
1 improved · 1 mixed- AGrade ABlood pressure · Improved
Meta-analysis · n 2,028 · 2016 · Pooled analysis of 34 placebo-controlled, double-blind trials (adults with and without hypertension)
Median 368 mg/day magnesium · Median 3 months
Versus placebo: systolic −2.00 mm Hg, diastolic −1.78 mm Hg; serum magnesium up 0.05 mmol/L. Small on average.
- CGrade CArterial stiffness · Mixed
RCT · n 164 · 2022 · Overweight or mildly obese adults (mean age 63) randomized to citrate, oxide, sulfate or placebo
450 mg/day magnesium · 24 weeks
No form changed pulse wave velocity or blood pressure versus placebo. An earlier 24-week trial (n=52, 350 mg/day) found a 1.0 m/s improvement, so results are mixed.