NutriStack
Hydrochlorothiazide and Magnesium Malate, a synergy.
Hydrochlorothiazide may gradually lower magnesium status by increasing urinary losses. Magnesium malate can help replenish magnesium when supplementation is appropriate. The combination is usually intentional and helpful, but magnesium replacement should still be monitored in kidney disease.
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At a glance
- Substances
- Hydrochlorothiazide and Magnesium Malate
- Pair type
- Synergy
- Evidence (highest tier)
- Moderate
- Source citations
- 3 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Moderate evidence
Synergy
What is happening. Hydrochlorothiazide may gradually lower magnesium status by increasing urinary losses. Magnesium malate can help replenish magnesium when supplementation is appropriate. The combination is usually intentional and helpful, but magnesium replacement should still be monitored in kidney disease.
Mechanism. Thiazide inhibition of distal sodium-chloride transport changes distal tubular electrolyte handling and can increase magnesium wasting during chronic exposure. Magnesium malate supplies magnesium to replace this loss.
Recommendation. If you take hydrochlorothiazide and develop cramps, weakness, palpitations, or persistent low potassium, ask whether magnesium should be checked. Use magnesium malate consistently and avoid large unsupervised doses if your kidney function is reduced.
Sources (3)
- Sica DA. Diuretic-related side effects: development and treatment. J Clin Hypertens (Greenwich). 2004;6(9):532-540. PMID 15365284
- Mohn ES, Kern HJ, Saltzman E, Mitmesser SH, McKay DL. Evidence of Drug-Nutrient Interactions with Chronic Use of Commonly Prescribed Medications: An Update. Pharmaceutics. 2018;10(1):36. PMID 29558445
- Dai LJ, Ritchie G, Kerstan D, Kang HS, Cole DE, Quamme GA. Magnesium transport in the renal distal convoluted tubule. Physiol Rev. 2001;81(1):51-84. PMID 11152754
Stack Score
How this pair moves the number.
Effect on the composite score
If both Hydrochlorothiazide and Magnesium Malate 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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