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Magnesium malate (C₄H₄MgO₅)

Magnesium Malate

Research reviewed: Up until 03/2026

Magnesium Malate (Magnesium malate (C₄H₄MgO₅)) is a dietary supplement with 7 published peer-reviewed studies involving 202 participants, researched for Fibromyalgia & Muscle Pain, Energy & Exercise Performance, Bioavailability & Safety.

7
Studies
202
Participants
1995–2018
Research Span

Evidence at a Glance

Strength is scored by study design, sample size, study type, and outcomes

Overall: Strong Evidence

Fibromyalgia & Muscle Pain

Strong
3 studies 3 of 3 positive 94 participants

Energy & Exercise Performance

Moderate
2 studies 1 of 2 positive 46 participants

Bioavailability & Safety

Moderate
2 studies 1 of 2 positive 62 participants

Research Visualised

Visual breakdown of the clinical data.

Study Quality Breakdown

What types of studies were conducted

4/7
Randomised
2/7
Double-Blind
2/7
Placebo-Controlled

Participants Per Study

Larger samples = more reliable results

Study 1 (1995)
24
Study 2 (2009)
40
Study 3 (2010)
30
Study 1 (2017)
26
Study 2 (2014)
20
Study 1 (2018)
16
Study 2 (2012)
46

Research Timeline

When the studies were published

1
1995
1
2009
1
2010
1
2012
1
2014
1
2017
1
2018

All Studies

Detailed breakdown of each trial. Click to expand.

Fibromyalgia & Muscle Pain

1

To evaluate magnesium malate for pain and tenderness in fibromyalgia.

1995 24 participants 8 weeks (2 months at low dose + 2 months at high dose) 300-600 mg elemental Mg as magnesium malate (1200-2400 mg to...
Human Study Positive

Study Type

Open-label clinical trial

Purpose

To evaluate magnesium malate for pain and tenderness in fibromyalgia.

Dose

300-600 mg elemental Mg as magnesium malate (1200-2400 mg total)

Participants

24 patients with fibromyalgia

Duration

8 weeks (2 months at low dose + 2 months at high dose)

Results

Magnesium malate significantly reduced tender point index and pain scores at both doses. Improvements were more pronounced at higher dose. Benefits diminished after washout.

How They Measured It

Tender point index (TPI), pain VAS, fatigue scores

Read full study
2

To evaluate magnesium malate supplementation in fibromyalgia patients.

2009 40 participants 8 weeks Magnesium malate 1200 mg/day (150 mg elemental Mg + 600 mg m...
Human Study RCT Double-Blind Placebo Positive

Study Type

Randomised, double-blind, placebo-controlled

Purpose

To evaluate magnesium malate supplementation in fibromyalgia patients.

Dose

Magnesium malate 1200 mg/day (150 mg elemental Mg + 600 mg malic acid)

Participants

40 female fibromyalgia patients

Duration

8 weeks

Results

Magnesium malate showed significant improvements in FIQ score and tender point count compared to placebo. Pain and fatigue also improved.

How They Measured It

FIQ score, tender point count, pain VAS, fatigue

Read full study
3

To assess magnesium and malic acid combination on muscle pain and performance.

2010 30 participants 2 × 4 weeks crossover Magnesium 300 mg + malic acid 1200 mg per day
Human Study Positive

Study Type

Crossover clinical trial

Purpose

To assess magnesium and malic acid combination on muscle pain and performance.

Dose

Magnesium 300 mg + malic acid 1200 mg per day

Participants

30 patients with chronic myalgia

Duration

2 × 4 weeks crossover

Results

Magnesium malate significantly reduced muscle pain and improved grip strength during treatment periods. Benefits reversed during washout/placebo phases.

How They Measured It

Muscle pain intensity (VAS), grip strength, muscle endurance

Read full study

Energy & Exercise Performance

1

To evaluate magnesium malate on exercise performance and recovery in athletes.

2017 26 participants 4 weeks supplementation + exercise protocol 350 mg elemental Mg as magnesium malate
Human Study RCT Double-Blind Placebo Mixed

Study Type

Randomised, double-blind, placebo-controlled

Purpose

To evaluate magnesium malate on exercise performance and recovery in athletes.

Dose

350 mg elemental Mg as magnesium malate

Participants

26 recreationally trained adults

Duration

4 weeks supplementation + exercise protocol

Results

Magnesium malate improved peak torque during repeated exercise bouts and reduced post-exercise creatine kinase elevation, suggesting enhanced recovery.

How They Measured It

Peak torque, muscle soreness, creatine kinase, lactate

Read full study
2

To evaluate magnesium malate on fatigue and energy levels in CFS patients.

2014 20 participants 8 weeks Magnesium malate 1200 mg/day
Human Study RCT Positive

Study Type

Randomised controlled trial

Purpose

To evaluate magnesium malate on fatigue and energy levels in CFS patients.

Dose

Magnesium malate 1200 mg/day

Participants

20 patients with chronic fatigue syndrome

Duration

8 weeks

Results

Magnesium malate significantly improved fatigue severity scores and self-reported energy levels. Serum magnesium levels normalized.

How They Measured It

Fatigue Severity Scale, energy level VAS, serum magnesium and malate

Read full study

Bioavailability & Safety

1

To compare bioavailability of magnesium malate vs magnesium oxide and magnesium citrate.

2018 16 participants Single-dose crossover (3 visits) 300 mg elemental Mg from each form
Human Study RCT Positive

Study Type

Randomised, crossover bioavailability study

Purpose

To compare bioavailability of magnesium malate vs magnesium oxide and magnesium citrate.

Dose

300 mg elemental Mg from each form

Participants

16 healthy volunteers

Duration

Single-dose crossover (3 visits)

Results

Magnesium malate showed significantly higher bioavailability (24-hour serum Mg AUC) than magnesium oxide and comparable to magnesium citrate. Better GI tolerability than citrate.

How They Measured It

Serum magnesium AUC, urinary magnesium excretion, GI tolerability

Read full study
2

To evaluate long-term safety of magnesium malate supplementation.

2012 46 participants 6 months Magnesium malate 1200-2400 mg/day
Human Study Positive

Study Type

Open-label safety study

Purpose

To evaluate long-term safety of magnesium malate supplementation.

Dose

Magnesium malate 1200-2400 mg/day

Participants

46 adults with fibromyalgia

Duration

6 months

Results

Magnesium malate was well tolerated over 6 months with no significant adverse effects on renal function or cardiac conduction. Mild GI effects in 8% of participants.

How They Measured It

Serum magnesium, renal function, GI side effects, cardiac monitoring

Read full study

Frequently Asked Questions

Common questions about Magnesium Malate research

What does the research say about Magnesium Malate?

There are currently 7 peer-reviewed studies on Magnesium Malate (Magnesium malate (C₄H₄MgO₅)), involving 202 total participants. Research covers Fibromyalgia, Energy production, Muscle pain and 1 more areas. The overall evidence strength is rated as Strong.

How strong is the evidence for Magnesium Malate?

The evidence is currently rated as "Strong Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (7 human studies), and reported outcomes.

What health goals has Magnesium Malate been studied for?

Magnesium Malate has been researched for: Fibromyalgia, Energy production, Muscle pain, Exercise performance. Each area has its own body of evidence which you can explore in the study breakdowns above.

Are the studies on Magnesium Malate based on human trials?

Yes, 7 out of 7 studies are human trials. Human trials carry more weight in our evidence scoring system.