
Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Magnesium L-threonate is a patented form of magnesium bound to L-threonic acid that uniquely crosses the blood-brain barrier to increase brain magnesium levels by 15%. It enhances synaptic plasticity and NMDA receptor function, specifically supporting memory formation and cognitive performance.

Reported Benefits (Provisional)
Origin & History

Magnesium L-Threonate, known as Magtein, is a chelated form of magnesium developed to enhance cognitive function. It is synthesized through the bonding of magnesium with threonic acid.
Research Narrative (Provisional)
Animal studies and emerging human trials suggest Magtein's efficacy in enhancing cognitive function and brain health. Preliminary evidence supports its role in stress reduction.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
- Chelated form of magnesium. - Easily crosses the blood-brain barrier. - Essential for neurological and bone health.
Reported Mechanism (Provisional)
Magnesium L-threonate utilizes L-threonic acid as a transport mechanism to cross the blood-brain barrier, increasing cerebrospinal fluid magnesium concentrations by approximately 15%. Once in the brain, magnesium acts as a cofactor for NMDA receptors and enhances long-term potentiation (LTP), the cellular basis of learning and memory. The compound specifically modulates presynaptic neurotransmitter release and postsynaptic receptor sensitivity at glutamatergic synapses.
Clinical Narrative (Provisional)
A randomized controlled trial with 44 adults aged 50-70 showed that 2g daily of magnesium L-threonate for 12 weeks improved cognitive performance equivalent to reversing brain aging by 9 years. Animal studies demonstrate enhanced spatial memory and increased synaptic density in hippocampal neurons. However, human clinical evidence remains limited with only one major published trial, though results showed statistically significant improvements in multiple cognitive assessments. Additional larger-scale studies are needed to confirm long-term efficacy and optimal dosing protocols.
Also Known As
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