Magnesium lowers blood pressure in hypertensive adults, the receipts.
Meta-analyses consistently find a small but real reduction in systolic and diastolic BP at 300 to 500 mg/day.
Strong evidence, per the methodology. Strongest 6 studies linked to PubMed.
Recommendation, contrary evidence, and dose are all on this page.
The studies
Strongest evidence, sourced.
Sorted by study tier (meta-analyses first, then RCTs, then reviews) and recency. Every entry links to PubMed by PMID.
At a glance
- Substances
- Magnesium Citrate, Magnesium Taurate, Magnesium Glycinate
- Evidence tier
- Strong evidence
- Strongest studies surfaced
- 6 of 9 matching
- One-line verdict
- A real, modest, reproducible effect.
- Last verified
- May 30, 2026
Top 6 studies
-
Meta-analysis
Oral magnesium supplementation reduces the risk of metabolic syndrome: a meta-analysis of randomized controlled trials PMID 27393444
Magnesium supplementation significantly improved metabolic syndrome parameters
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RCT
Taurine and magnesium supplementation increased endothelial progenitor cell colony formation in healthy men and improved impaired EPC function in hypertensive rats through antioxidation.
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Review
Complementary vascular-protective actions of magnesium and taurine: a rationale for magnesium taurate PMID 8692051
Taurine lowers blood pressure, retards atherogenesis, prevents arrhythmias, and stabilizes platelets -- effects parallel to magnesium; combined magnesium taurate has considerable cardiovascular protective potential.
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Review
Taurine and magnesium co-supplementation for cardiovascular protection PMID 8692034
Combined magnesium and taurine may synergistically support cardiovascular function
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Meta-analysis
Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled Trials PMID 41000008
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Meta-analysis
Strong evidence that magnesium supplementation decreases risk of hospitalization in pregnant women and reduces migraine intensity/frequency; beneficial for blood pressure.
Contrary evidence
What pushes back.
Caveats, null findings, and methodological limits that hold the tier where it is.
What argues against the claim
- Effect is small (about 2 mmHg systolic on average).
- Larger effects appear in deficient or pre-hypertensive subgroups.
Recommendation
What the evidence supports.
What we recommend, with caveats
300 to 500 mg/day chelated magnesium as an adjunct, not a replacement, for diagnosed hypertension. Coordinate with your physician if you take BP medication.
Tier criteria are documented at /methodology/evidence-tiers. Sourcing standards at /methodology/interactions.
Stack interaction risks
Where these substances clash.
Documented pairings involving the substances behind this claim. Cautions and conflicts come first.
Pairs in the database
- Amlodipine + Magnesium Citrate · Caution
- Amlodipine + Magnesium Glycinate · Caution
- Bisacodyl + Magnesium Citrate · Caution
- Digoxin + Magnesium Glycinate · Caution
- Diltiazem + Magnesium Citrate · Caution
- Esomeprazole + Magnesium Glycinate · Caution
Open the free interaction checker at /interactions to scan a full routine.
Goal hubs
Where this claim feeds in.
Goal-based hubs that index this claim alongside related supplements and protocols.
Related goal hubs
Before you go
One claim, opened up. NutriStack does this for every claim in the database.
The full library lives at /research. Every entry follows the same shape: the verdict, the studies, the contrary evidence, the recommendation, and the primary literature.