Magnesium L-Threonate
potential cognitive support and brain magnesium enhancement
mineralBrain-penetrating magnesium for cognition, memory, and sleep.
Quick answer
What it is: Magnesium L-Threonate is a synthetic form of magnesium that has garnered interest due to its purported ability to cross the blood-brain barrier more effectively than other magnesium compounds.
May support:Parkinson's Disease, Burnout, ADHD, Magnesium Deficiency
Evidence Summary
The current understanding of Magnesium L-Threonate's effects is primarily derived from preclinical studies, particularly in animal models. While these studies provide a mechanistic basis and suggest potential benefits, human clinical trials are limited in number and scope. Therefore, the evidence base for its efficacy in humans is considered preliminary.
Last reviewed · Jun 2026
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Why It Works
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How to use
Always consult a qualified clinician.Editorial guidance
- Antibiotics (tetracyclines and quinolones)
- Diuretics (potassium-sparing)
- Bisphosphonates
- Proton pump inhibitors (long-term use)
- Severe kidney disease
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Suggested dosage
General guidance — discuss specifics with a clinician.
Active medicinal compounds
Traditional use
Safety
Safety warnings
Avoid if
- Severe kidney disease
Medication interactions
- Antibiotics (tetracyclines and quinolones)
- Diuretics (potassium-sparing)
- Bisphosphonates
- Proton pump inhibitors (long-term use)
Reported side effects
- Drowsiness
- Headache
- Dizziness
- Gastrointestinal upset (e.g., diarrhea, nausea) at higher doses
General guidance — discuss specifics with a clinician.
Evidence ecosystem
Scientific literature, clinical guidance, government sources, ongoing research, traditional use, and lived experience — grouped by source type and quality.
Overall grade
The current understanding of Magnesium L-Threonate's effects is primarily derived from preclinical studies, particularly in animal models. While these studies provide a mechanistic basis and suggest potential benefits, human clinical trials are limited in number and scope. Therefore, the evidence base for its efficacy in humans is considered preliminary.
Clinical Trial Registries(7)
Registered ongoing or completed trials (ClinicalTrials.gov).
n=8 · NCT02496676 · COMPLETED · COMPLETED
Background: \- X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection, and neoplasia syndrome is called XMEN syndrome. In this genetic condition, the cells have less magnesium than normal. This makes it hard for the body to fight infections. Researchers want to see if magnesium supplements can make it easier for the body to fight infection. Objective: \- To see if magnesium supplements can strengthen the immune system and reduce the amount of Epstein-Barr virus in people with XMEN syndrome. Eligibility: \- People ages 6 and older who have XMEN syndrome Design: * Participants will be screened with: * Medical history * Physical exam * CT scan: Participants will drink a contrast and may get dye through an IV in the arm. They will lie in a machine that takes pictures of the body. * EKG: Small sticky patches on the body will trace heart rhythm. * Blood tests * The study has 2 parts. * Participants doing both parts will participate for 1 year and visit the clinic about 15 times. These visits will include a physical exam and blood and urine tests. * Participants doing only the first part finish in 6 months and have fewer visits. * For study part 1, participants will take magnesium pills for 3 months and placebo pills for another 3 months. * At 3 and 6 months, they will have physical exam, medical history, blood and urine tests, and an EKG. * If the magnesium pills are not helpful, participants will do study part 2. * They will be admitted to the hospital for 4 5 days to get magnesium for 3 days through an arm vein. * They will take magnesium pills for another 6 months.
Clinical TrialClinicalTrials.govModerate Qualityn=100 · NCT07015047 · ACTIVE_NOT_RECRUITING · ACTIVE_NOT_RECRUITING
This study is testing whether a special form of magnesium called magnesium L-threonate can help improve sleep quality, recovery, and physical performance in college athletes. Magnesium is important for muscle recovery and sleep, but many forms of it do not enter the brain well. Magnesium L-threonate is unique in that it can cross the blood-brain barrier and may improve deep and REM sleep, heart rate variability, and brain recovery. In this study, healthy UCLA varsity athletes aged 18 to 35 will be randomly assigned to take either magnesium L-threonate or a placebo each evening for 4 weeks. They will wear a WHOOP strap to track sleep, recovery, and heart rate data. Performance tests including jump height, grip strength, and reaction time will be completed before and after the 4-week period. This study will help researchers determine if this supplement can support recovery and training in athletes and whether wearable technology can help monitor these changes in real time.
Clinical TrialClinicalTrials.govModerate Qualityn=160 · NCT04942119 · UNKNOWN · UNKNOWN
Insufficient clinical evidence correlates the progression of diabetic kidney disease with electrolyte homeostasis in patients diagnosed with type 2 diabetes mellitus (T2DM), especially in the United Arab Emirates (UAE) population and what are the most effective interventions to slow chronic renal failure progression. In our research, we test the hypothesis that low serum magnesium and potassium levels are directly associated with the decline of kidney function in diabetic patients who did not have severely impaired renal function at baseline. In addition, we describe the effect of long-term multifactorial adherence interventions on medication adherence, diet adherence and follow-up visits using a telemedicine approach such as mobile applications in reducing the progression of chronic kidney disease and other diabetes-related complications. This study is a single-blind randomized control trial to demonstrate the causal relationship between potassium and magnesium levels and estimated glomerular filtration rate (eGFR) decline. The intervention group will be evaluated for manifestations of electrolyte imbalance and correction of serum magnesium and/or potassium levels will be initiated based on the last updated laboratory test. Moreover, they will receive education to reinforce diet and exercise changes at each follow up visit by a specialized dietitian with pharmacist-led comprehensive medication therapy management utilizing multifactorial adherence interventions to measure potential drug-drug or drug-food interactions, as well as medication and follow-up adherence through an integrated mobile application and fixed medication possession ratio (FMPR). This research is under progress, and summary of its findings will be reported. This study will suggest if additional national monitoring guidelines may be warranted. In addition, it will reduce diabetic burden, medication cost in UAE and improve patient satisfaction by reducing or delaying the progression of diabetic kidney disease in diabetic patients.
Clinical TrialClinicalTrials.govModerate Quality
Limitations: Key limitations include the scarcity of large-scale, placebo-controlled human clinical trials. Most existing research is preclinical, and findings from animal models do not always translate directly to humans. There is also a lack of studies comparing Magnesium L-Threonate directly with other magnesium forms for brain-specific effects in humans.
This page is educational. Statements use phrases like "may support" and "has been studied for"because no remedy here is approved to cure, treat, or reverse any condition. Discussion happens on the ailment pages — community statistics here are derived from those reports. Always consult a qualified clinician.
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