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Minerals & electrolytes

Magnesium Aspartate

Magnesium Aspartate

Magnesium aspartate is a magnesium salt of L-aspartic acid. It has no established nootropic benefit: randomized-trial evidence on magnesium supplements is insufficient for cognitive conclusions, and that evidence is not specific to this form.

Mineral SaltClinical ResearchInsufficient EvidenceForm Dependent EvidenceLow Risk ProfileGi Side EffectsKidney Caution
Updated August 2026/4 min read/4 citations
Reviewed by the NootropicsIndex editorial team.Method: prioritize cited human research and official safety or regulatory sources; compare retailer-listed prices without endorsing products.Affiliate disclosure
Extra caution

Who should avoid this or get expert review first

This is not a recommendation to use. These groups should treat the profile as a reason to slow down and verify safety, rules, and personal context.

  • Who should avoid self-directed use?4People with impaired kidney function should seek clinical advice before taking magnesium supplements because reduced magnesium elimination can increase toxicity risk.
Supplement form

Magnesium Aspartate is a form of Magnesium

View all Magnesium productsMagnesium CarbonateMagnesium ChlorideMagnesium CitrateMagnesium GluconateMagnesium GlycinateMagnesium HydroxideMagnesium LactateMagnesium L-ThreonateMagnesium MalateMagnesium OrotateMagnesium OxideMagnesium PidolateMagnesium SulfateMagnesium Taurate
01

What is it?

What is Magnesium Aspartate?

1

The cited PubChem chemical record identifies magnesium aspartate tetrahydrate as a hydrated magnesium salt of L-aspartic acid. Product form matters when comparing labels.

Evidence at a glance3
There is no established nootropic benefit for magnesium aspartate. A 2024 systematic review found the randomized-trial evidence on magnesium supplements insufficient for cognitive conclusions, and it was not a trial of this specific form.
02

Names, aliases and forms

Salt FormsMagnesium L-aspartate; Magnesium aspartate anhydrous
Hydrate FormMagnesium aspartate tetrahydrate
03

Mechanisms of action

Mechanism and cognitive relevance

3

The cited cognitive review does not establish a cognitive mechanism or nootropic benefit for magnesium aspartate. A chemical salt name alone is not evidence of cognitive efficacy.

04

Potential effects and evidence map

Magnesium aspartate has no established nootropic benefit. A 2024 systematic review found the randomized-trial evidence on magnesium supplements insufficient for cognitive conclusions; it does not establish a cognitive effect for this specific magnesium form.

Effect domainMagnitudeGrade
Focus / attention3
UnknownConfidence: Low

Evidence is insufficient to draw cognitive conclusions for magnesium supplements and does not establish a focus or attention effect for magnesium aspartate.

Note The cited systematic review is not a magnesium-aspartate-specific trial.

0/5
E
05

Typical dosages and timing

Nootropic dosing3Not established

The reviewed evidence does not establish a general dosage for cognitive performance with magnesium aspartate.

06

Timing & effect horizon

Effect horizonUnknown
Unknown
Timeline3

No onset, peak, or duration has been established for a cognitive effect of magnesium aspartate.

07

Safety, side effects and risk profile

GI discomfort4
Confidence: High

High intakes of magnesium from dietary supplements and medications can cause diarrhea, nausea, and abdominal cramping.

Note This is general magnesium guidance, not form-specific tolerability evidence.

2/5
B
Liver / kidney caution4
Confidence: High

The risk of magnesium toxicity increases when impaired kidney function reduces the ability to remove excess magnesium.

Note This is general magnesium guidance, not a magnesium-aspartate-specific risk estimate.

2/5
B
Interaction risk4
Confidence: High

Magnesium can reduce absorption of oral bisphosphonates and form insoluble complexes with tetracycline and quinolone antibiotics.

Note This is general magnesium guidance; discuss regular medication use with a clinician or pharmacist.

3/5
B
Gastrointestinal effects at high intakes4

At high supplemental or medication intakes, NIH ODS lists diarrhea, nausea, and abdominal cramping among magnesium's gastrointestinal effects.

08

Interactions and cautions

Medication interactions4

NIH ODS flags timing and absorption interactions between magnesium and oral bisphosphonates, tetracycline antibiotics, and quinolone antibiotics. Ask a clinician or pharmacist about regular medicines.

09

How it compares

Compared with other magnesium forms2

Magnesium aspartate is the magnesium-and-aspartate salt. Its hydrated and anhydrous chemical forms distinguish it from other magnesium salts, but do not themselves establish a nootropic difference.

10

Practical buying and quality notes

  • NIH ODS notes that Supplement Facts panels declare elemental magnesium rather than the total weight of a magnesium compound, so read the specific label and compare the stated elemental amount.4
11

FAQ

Is magnesium aspartate a nootropic?

3

No established nootropic benefit has been shown for magnesium aspartate. The cited systematic review found the randomized-trial evidence on magnesium supplements insufficient for cognitive conclusions and did not test this form specifically.

12

References

  1. PubChem. Magnesium Aspartate (tetrahydrate; CID 56841975): identity, molecular formula, synonyms, and component compounds. Accessed 2026-08-21.
  2. PubChem. Magnesium aspartate anhydrous (CID 92912): identity, magnesium L-aspartate synonym, and anhydrous form. Accessed 2026-08-21.
  3. Chen F, Wang J, Cheng Y, et al. Magnesium and Cognitive Health in Adults: A Systematic Review and Meta-Analysis. Advances in Nutrition. 2024;15(8):100272. doi:10.1016/j.advnut.2024.100272. PMID: 39009081.
  4. National Institutes of Health, Office of Dietary Supplements. Magnesium: Health Professional Fact Sheet. Updated 2026-01-06. Accessed 2026-08-21.
Note

This page is informational and summarizes available evidence. It is not medical advice, a recommendation, or a substitute for guidance from a qualified clinician.