NutriStack
ModerateTiming Sensitive
Calcium
High-dose calcium and magnesium compete for absorption when taken simultaneously.
Recommendation: If taking high doses (>500mg each), separate by 2+ hours. Moderate doses can be taken together.
Magnesium Malate
Mineral ·Moderate evidence ·Reviewed May 2026
Magnesium combined with malic acid, targeted for energy and fibromyalgia support.
The bottom line
Evidence rating moderate. Most-documented uses: energy production, fibromyalgia support, muscle pain. 12 sources indexed (1992–2025), with 17 interaction records on file.
The science
How it works, mechanistically.
Core mechanism
Malic acid is a Krebs cycle intermediate that supports ATP production. Magnesium is a cofactor for >300 enzymes including those in energy metabolism.6,7
Class
Magnesium Form
Absorption
Water-soluble; take with food
Dosing
Dosing & protocol.
Common range
200-350 mg elemental magnesium daily
Recommended form
Magnesium malate capsules or powder
Forms
Forms & what to buy.
Ranked by evidence and value.
Glycinate / Bisglycinate Recommended
Highly bioavailable and well tolerated. Chelated form with low laxative effect and strong GI tolerability.
~80% relative bioavailability
Citrate
Good general-purpose oral form with moderate absorption. Well absorbed but can loosen stools at higher doses.
~65% relative bioavailability
Oxide
Very low absorption despite high elemental magnesium content. Poor oral absorption; inexpensive but inefficient for repletion.
~5% relative bioavailability
L-Threonate
Lower elemental content but valued for CNS-focused use. Magnesium L-threonate is marketed for brain penetration; elemental yield is low.
~45% relative bioavailability
Taurate
Moderate absorption with taurine added for cardiovascular support. Chelated form that is usually gentle on the stomach.
~55% relative bioavailability
Malate
Moderate absorption with malic acid support. Often preferred when magnesium is used for daytime energy support.
~55% relative bioavailability
Orotate
Moderate absorption; niche form commonly marketed for heart support. Usually well tolerated but typically more expensive than glycinate or citrate.
~50% relative bioavailability
Chloride / Oil
Absorption is variable and product-dependent. Topical magnesium bypasses some GI intolerance but systemic absorption is inconsistent.
Cost
What it actually costs.
Real-world pricing across three quality tiers. Assumes Magnesium Malate.
BudgetBest value
$5.40 /mo
$0.18 per dose
Mid
$10.50 /mo
$0.35 per dose
Premium
$19.50 /mo
$0.65 per dose
Assumes 200-350 mg elemental magnesium/day. Vendor basis: NOW/iHerb, Vitacost, Amazon marketplace, and practitioner brands; capsules usually cost more than powder. Updated 2026-05-28.
From food
The same dose, as food.
How much you'd eat to match a supplemental dose.
200-350 mg elemental magnesium
About 1 ounce pumpkin seeds plus cooked greens, 1 ounce almonds plus beans, cashews plus whole grains, dark chocolate plus legumes, or spinach with seeds can approach this range.
Foods provide elemental magnesium, not magnesium malate specifically.
Lab work
Markers to track.
What to test, the optimal window inside the conventional range, and how long a response takes.
Why people use it
Symptoms it's matched to.
Where this appears in the symptom-to-supplement map, ranked by relevance.
Chronic fatigue syndrome / ME support
64% relevance
Magnesium is a cofactor for ATP-dependent reactions and the malate component feeds the Krebs cycle, which may support energy metabolism mainly when intake is low.6,8
EnergyInsufficient evidenceMagnesium malate capsule providing 200 to 300 mg elemental magnesium daily
Benefit is plausible mainly when correcting a deficiency; reduce dose if loose stools occur and treat as supportive only under clinician care.
Protocols
Featured in protocols.
Evidence-based stacks that include it, with the exact dose and timing each one uses.
Mitochondrial Energy Protocol
EnergyCoreStrong evidenceAdvanced$60-100/mo
Dose here
150-300 mg elemental magnesium
Timing
With dinner or split across meals
Magnesium is a required cofactor for ATP, which is biologically active as the magnesium-ATP complex, and the malate component is an intermediate of the citric acid cycle. Correcting marginal magnesium status supports normal energy metabolism; keeping supplemental magnesium at or below about 350 mg of elemental magnesium per day helps avoid loose stools and stays within standard upper-limit guidance.10,1
Fibromyalgia Support Protocol
Pain and FatigueCoreEmerging evidenceIntermediate$35-60/mo
Dose here
100-200 mg elemental magnesium
Timing
Evening with food
Magnesium malate has a small pilot-trial history in fibromyalgia and may be most useful for people with low magnesium intake, muscle tenderness, or sleep tension. Evidence remains preliminary.1,2
Safety
Full safety detail.
Side effects
- Well tolerated
- Mild laxative effect
Contraindications
- Kidney disease
Interactions
Interaction records.
InfoSynergy
Vitamin B6
Vitamin B6 increases intracellular magnesium accumulation. Magnesium is required for B6 activation to its coenzyme form PLP.
Recommendation: Take together for enhanced mutual absorption and utilization.
InfoSynergy
Vitamin D3
Magnesium is essential for vitamin D metabolism. It's required for the enzymes that convert D3 to its active form calcitriol.
Recommendation: Ensure adequate magnesium when supplementing D3. Magnesium deficiency can impair D3 activation.
InfoSynergy
Vitamin B1
Magnesium is required for thiamine (B1) utilization. Magnesium deficiency impairs thiamine-dependent enzyme activity.
Recommendation: Ensure adequate magnesium when supplementing B1 for proper enzymatic function.
InfoSynergy
Ashwagandha
Both promote relaxation and support sleep quality through complementary mechanisms.
Recommendation: Take together in the evening for enhanced sleep and stress support.
InfoSynergy
L-Theanine
L-theanine and magnesium are both studied for relaxation-related markers, but direct combination evidence is limited.
Recommendation: If combining L-theanine with magnesium malate, keep total supplemental magnesium within 200-350 mg/day elemental magnesium unless clinician-supervised; do not frame the pair as anxiety treatment.
InfoSynergy
Melatonin
Melatonin and magnesium are commonly used in sleep routines, but direct stack evidence and optimal dosing vary.
Recommendation: If combining melatonin with magnesium malate, keep magnesium within 200-350 mg/day supplemental elemental magnesium unless clinician-supervised and keep melatonin use situational or clinician-guided for persistent insomnia.
InfoSynergy
Apigenin
Both promote relaxation and sleep through GABAergic and glutamate-modulating pathways.
Recommendation: Combine for a gentle, non-habit-forming sleep support stack.
ModerateSynergy
Potassium
Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize.
Recommendation: If hypokalemic, check magnesium status. Refractory hypokalemia often resolves only when magnesium is also repleted.
ModerateTiming Sensitive
Iron
Magnesium and iron can compete for absorption when taken together. Separate for optimal absorption of both.
Recommendation: Take iron in the morning on an empty stomach. Take magnesium malate in the evening.
InfoSynergy
Creatine
Magnesium is required for creatine kinase enzyme activity, which phosphorylates creatine to phosphocreatine.
Recommendation: Ensure adequate magnesium when supplementing creatine for optimal ATP buffering.
InfoSynergy
Calcium
At moderate doses, magnesium and calcium work synergistically for bone health and muscle function. Calcium for contraction, magnesium for relaxation.
Recommendation: Aim for 2:1 calcium-to-magnesium ratio. Both are essential for bone density and neuromuscular function.
Sources
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
4- 1Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsNeeds reviewPMIDArgeros Z, Xu X, Bhandari B et al. · Hypertension (Dallas, Tex. : 1979) · 2025
Argeros Z, Xu X, Bhandari B et al.. Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Hypertension (Dallas, Tex. : 1979). 2025
- 2Magnesium supplementation beneficially affects depression in adults with depressive disorder: a systematic review and meta-analysis of randomized clinical trialsNeeds reviewPMIDMoabedi M, Aliakbari M, Erfanian S et al. · Frontiers in psychiatry · 2023
Moabedi M, Aliakbari M, Erfanian S et al.. Magnesium supplementation beneficially affects depression in adults with depressive disorder: a systematic review and meta-analysis of randomized clinical trials. Frontiers in psychiatry. 2023
- 3The effects of magnesium supplementation on obesity measures in adults: a systematic review and dose-response meta-analysis of randomized controlled trialsNeeds reviewPMIDAskari M, Mozaffari H, Jafari A et al. · Critical reviews in food science and nutrition · 2021
Askari M, Mozaffari H, Jafari A et al.. The effects of magnesium supplementation on obesity measures in adults: a systematic review and dose-response meta-analysis of randomized controlled trials. Critical reviews in food science and nutrition. 2021
- 4Oral Magnesium Supplementation for Treating Glucose Metabolism Parameters in People with or at Risk of Diabetes: A Systematic Review and Meta-Analysis of Double-Blind Randomized Controlled TrialsNeeds reviewPMIDVeronese N, Dominguez LJ, Pizzol D et al. · Nutrients · 2021
Veronese N, Dominguez LJ, Pizzol D et al.. Oral Magnesium Supplementation for Treating Glucose Metabolism Parameters in People with or at Risk of Diabetes: A Systematic Review and Meta-Analysis of Double-Blind Randomized Controlled Trials. Nutrients. 2021
Randomized controlled trials
3- 5Short-Term Magnesium Therapy Alleviates Moderate Stress in Patients with Fibromyalgia: A Randomized Double-Blind Clinical TrialNeeds reviewPMIDAndretta A et al. · Nutrients · 2022
Pain severity diminished significantly (p=0.029) with magnesium supplementation in fibromyalgia patients in a 1-month RCT.
- 6Treatment of fibromyalgia syndrome with Super Malic: a randomized, double blind, placebo controlled, crossover pilot studyNeeds reviewPMIDRussell IJ et al. · J Rheumatol · 1995
Super Malic (malic acid + magnesium) showed positive trends for pain reduction in fibromyalgia in a randomized double-blind crossover pilot study of 24 patients.
- 7Management of fibromyalgia: rationale for the use of magnesium and malic acidNeeds sourceNo linkAbraham GE, Flechas JD · J Nutr Med · 1992
Reviews & position papers
4- 8Magnesium and Fibromyalgia: A Literature ReviewNeeds reviewPMIDBoulis M, Boulis M, Clauw DJ · J Prim Care Community Health · 2021
Seven systematic reviews identified supporting magnesium supplementation for fibromyalgia; serum magnesium levels were significantly lower in fibromyalgia patients with meaningful association between magnesium and fatigue.
- 9Bioavailability of magnesium food supplements: A systematic reviewNeeds reviewPMIDAtes M et al. · Nutrition · 2021
Organic magnesium formulations (including malate) appear to be more bioavailable than inorganic compounds, though percentage of absorption is dose dependent.
- 10Magnesium in Prevention and TherapyNeeds reviewPMIDGrober U, Schmidt J, Kisters K · Nutrients · 2015
Magnesium is a cofactor in more than 300 enzyme systems that regulate diverse biochemical reactions in the body, including energy production, protein synthesis, and muscle and nerve function.
- 11Magnesium: its proven and potential clinical significanceSource linkedPMIDGuerrera MP, Volpe SL, Mao JJ · Am Fam Physician · 2009
Keep exploring
Deep dives & adjacent profiles.
This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.
Use this with your stack
Magnesium Malate in NutriStack.
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