Claim deep dive·Strong evidence·Updated July 13, 2026
Evidence review: Magnesium lowers blood pressure in hypertensive adults
Meta-analyses consistently find a small but real reduction in systolic and diastolic BP at 300 to 500 mg/day.
The bottom line.
The strongest studies.
Sorted by study tier (meta-analyses first, then RCTs, then reviews) and recency. Every entry links to PubMed by PMID, and every citation on this page points here.
Meta-analyses & systematic reviews
5- 1Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsSource linkedPMIDArgeros Z, Xu X, Bhandari B et al. · Hypertension (Dallas, Tex. : 1979) · 2025
- 2Magnesium and health outcomes: an umbrella review of systematic reviews and meta-analyses of observational and intervention studiesSource linkedPMIDVeronese N et al. · Eur J Nutr · 2019
Strong evidence that magnesium supplementation decreases risk of hospitalization in pregnant women and reduces migraine intensity/frequency; beneficial for blood pressure.
- 3Oral magnesium supplementation reduces the risk of metabolic syndrome: a meta-analysis of randomized controlled trialsSource linkedPMIDSimental-Mendia LE, Sahebkar A, Rodriguez-Moran M, Guerrero-Romero F · Pharmacol Res · 2016
Magnesium supplementation significantly improved metabolic syndrome parameters
- 4Effects of Magnesium Supplementation on Blood Pressure: A Meta-Analysis of Randomized Double-Blind Placebo-Controlled TrialsSource linkedPMIDZhang X et al. · Hypertension · 2016
Magnesium supplementation significantly reduces systolic and diastolic blood pressure, with greater effects at doses of 300 mg/day or more.
- 5Effect of magnesium supplementation on blood pressure: a meta-analysisSource linkedPMIDKass L et al. · Eur J Clin Nutr · 2012
Combining trials showed magnesium supplementation decreases systolic blood pressure by 3-4 mmHg and diastolic by 2-3 mmHg in hypertensive populations.
Randomized controlled trials
1- 6Taurine and magnesium supplementation enhances the function of endothelial progenitor cells through antioxidation in healthy men and spontaneously hypertensive ratsSource linkedPMIDKatakawa M et al. · Hypertens Res · 2016
Taurine and magnesium supplementation increased endothelial progenitor cell colony formation in healthy men and improved impaired EPC function in hypertensive rats through antioxidation.
Reviews & position papers
2- 7Complementary vascular-protective actions of magnesium and taurine: a rationale for magnesium taurateSource linkedPMIDMcCarty MF · Med Hypotheses · 1996
Taurine lowers blood pressure, retards atherogenesis, prevents arrhythmias, and stabilizes platelets -- effects parallel to magnesium; combined magnesium taurate has considerable cardiovascular protective potential.
- 8Taurine and magnesium co-supplementation for cardiovascular protectionSource linkedPMIDMcCarty MF · Med Hypotheses · 1996
Combined magnesium and taurine may synergistically support cardiovascular function
Mechanistic & preclinical
1- 9Magnesium taurate attenuates progression of hypertension and cardiotoxicity against cadmium chloride-induced hypertensive albino ratsSource linkedPMIDShrivastava P et al. · J Tradit Complement Med · 2019
Magnesium taurate significantly restored blood pressure and myocardial antioxidants, demonstrating antihypertensive and cardioprotective activity via potent antioxidant mechanisms.
What pushes back.
Caveats, null findings, and methodological limits that hold the tier where it is.
What the evidence supports.
What we recommend
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. 4,1
Tier criteria: /methodology/evidence-tiers. Sourcing standards: /methodology/interactions.
Common questions.
Quick answers drawn from the verdict, evidence, and recommendation above.
Does the evidence support the claim that magnesium lowers blood pressure in hypertensive adults?
Meta-analyses consistently find a small but real reduction in systolic and diastolic BP at 300 to 500 mg/day.
How strong is the evidence behind Magnesium Citrate, Magnesium Taurate, and Magnesium Glycinate for this claim?
NutriStack rates this as Strong evidence, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
What contrary evidence or caveats apply?
Effect is small (about 2 mmHg systolic on average). Larger effects appear in deficient or pre-hypertensive subgroups.
What does NutriStack recommend?
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.
Selected claims, opened up
This is how NutriStack presents an evidence review.
Each published claim review shows its verdict, attached studies, contrary evidence, dose context, and limits. Coverage is selective rather than a claim that every database assertion has received the same review.