Based on the available evidence, reported outcomes for magnesium L-threonate are limited to preclinical studies and a small number of clinical trials with minimal published results.

Preclinical Findings

The strongest evidence comes from animal studies examining specific mechanisms:

Bladder Function: One 2026 study reported that magnesium L-threonate normalized magnesium deficiency and alleviated bladder overactivity in a cyclophosphamide-induced cystitis model. The study identified mechanisms involving inflammatory modulation and barrier restoration, though specific quantitative outcomes were not detailed in the available evidence.

Comparative Neurophysiological Effects: A 2026 comparative study examined magnesium L-threonate against magnesium-acetyl-taurate, measuring bioavailability, synaptic plasticity, and cognitive functions in preclinical models. However, the study actually found enhanced benefits favoring the comparator (magnesium-acetyl-taurate) over magnesium L-threonate, though specific numerical outcomes are not provided in the available evidence.

Clinical Trial Evidence

The evidence base includes several completed and ongoing clinical trials, but published outcome data is extremely limited:

Alzheimer's Disease: Two Phase 2 trials (NCT03531684, NCT03601169) examining efficacy and safety in early Alzheimer's disease and dosage comparisons in older adults have been completed, but specific measurable results are not available in the provided evidence.

Athletic Performance: One active trial (NCT07015047) is examining effects on sleep, recovery, and athletic performance in collegiate athletes, but results are pending.

Sleep and Stress: A completed trial (NCT06889584) investigated supplement combinations including magnesium threonate on stress and sleep outcomes, but specific results are not reported.

Evidence Limitations

The current evidence base is notably thin. While multiple clinical trials have been conducted or are underway, published quantitative outcomes, biomarker changes, or symptom improvement data are not available in the accessible literature. Most studies appear to be recent (2026), suggesting results may not yet be fully published or peer-reviewed.

Disclaimer: This summary is for informational purposes only and does not constitute medical advice. Consult healthcare providers for personalized recommendations regarding magnesium supplementation.

Magnesium Threonate

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