NutriStack
Furosemide and Magnesium Malate, a synergy.
Furosemide can waste magnesium through the kidney, especially with higher doses or long-term use. Magnesium malate is a magnesium-containing supplement that may help correct depletion when labs or symptoms support replacement. The main safety concern is oversupplementation in people with impaired kidney function.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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At a glance
- Substances
- Furosemide 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. Furosemide can waste magnesium through the kidney, especially with higher doses or long-term use. Magnesium malate is a magnesium-containing supplement that may help correct depletion when labs or symptoms support replacement. The main safety concern is oversupplementation in people with impaired kidney function.
Mechanism. By blocking NKCC2 in the thick ascending limb, furosemide disrupts the electrical gradient that normally supports magnesium reabsorption. Magnesium malate supplies elemental magnesium to offset renal magnesium wasting.
Recommendation. Have magnesium and potassium monitored if you take furosemide chronically or develop cramps, weakness, palpitations, or hard-to-correct low potassium. Keep magnesium malate dosing moderate unless your clinician specifically recommends a higher replacement dose.
Sources (3)
- Brater DC. Diuretic therapy. N Engl J Med. 1998;339(6):387-395. PMID 9691107
- 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 Furosemide 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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