Interaction databaseSupplement × PrescriptionReviewed May 2026

Losartan and Magnesium Citrate, a synergy.

Magnesium supplementation lowers blood pressure modestly (about 2-3 mm Hg systolic and 2 mm Hg diastolic) when added to antihypertensive medication. Combined with losartan the effect is additive and generally beneficial, though it may produce mild hypotension if blood pressure is already at goal.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

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What the row says.

Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances
Losartan and Magnesium Citrate
Pair type
Synergy
Evidence (highest tier)
Strong
Source citations
2 sources
Stack Score effect
+2 to your Stack Score (per scored synergy row).
Scope
Supplement × Prescription
Last verified
May 30, 2026

Synergy · Strong evidence

Synergy

What is happening. Magnesium supplementation lowers blood pressure modestly (about 2-3 mm Hg systolic and 2 mm Hg diastolic) when added to antihypertensive medication. Combined with losartan the effect is additive and generally beneficial, though it may produce mild hypotension if blood pressure is already at goal.

Mechanism. Magnesium modulates vascular smooth muscle calcium handling, promotes nitric oxide release, and inhibits angiotensin-induced vasoconstriction. These actions complement AT1 receptor blockade.

Recommendation. Magnesium Citrate 200-350 mg elemental magnesium daily is a reasonable add-on; monitor home blood pressure after starting. Tell your prescriber so your losartan dose can be reviewed. Reduce dose if you develop loose stools.

Sources (2)
  1. Kass L, Weekes J, Carpenter L. Effect of magnesium supplementation on blood pressure: a meta-analysis. Eur J Clin Nutr. 2012;66(4):411-8. PMID 22318649
  2. Alharran AM, et al. Impact of Magnesium Supplementation on Blood Pressure: An Umbrella Meta-Analysis of Randomized Controlled Trials. Curr Ther Res Clin Exp. 2024;101:100755. PMID 39280209

Stack Score

How this pair moves the number.

Effect on the composite score

If both Losartan and Magnesium Citrate are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.