What is Magnesium L-Threonate?

Magnesium L-Threonate is a form of magnesium bound to L-threonic acid, developed to raise magnesium levels in the brain. It is commonly used for cognitive and neurological support.

What are the potential benefits of Magnesium L-Threonate?

Small human studies suggest it may support aspects of cognition such as memory and executive function, and it may help sleep quality in some people. Animal research also suggests potential neuroprotective effects, but more robust human data are needed.

What is a typical dosage for Magnesium L-Threonate?

Common supplemental amounts are about 1000–2000 mg per day of Magnesium L-Threonate, often split into 1–2 doses. Check the label for elemental magnesium content, which is lower than the compound weight.

How long does it take to notice effects?

Some people report changes in sleep or cognition within a few weeks, but responses vary. Consistent daily use and adequate overall magnesium intake may influence results.

Is Magnesium L-Threonate safe and who should be cautious?

It is generally well tolerated, but it can cause gastrointestinal upset in some individuals. People with kidney disease, those who are pregnant or breastfeeding, or anyone taking medications should consult a clinician before use.

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Magnesium L-
Threonate

Limited research available·3/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Magnesium L-Threonate is a patented magnesium compound designed to boost brain magnesium levels and support cognitive and neurological health.

Sleep Improvement Cognitive Enhancement Stress Relief Memory Improvement Essential Nutrient Neuroprotective

dose range

1000–2000 mg

Split into two doses, morning and evening.

Consumption

Take with or without food, at consistent times each day. Separate from medications that may interact by at least 2–3 hours.

Not fat-soluble.

Best time

Often divided into morning and evening doses to maintain steady blood levels.

Description

Magnesium L-Threonate (MgT) is a unique form of magnesium supplement developed for its ability to increase brain magnesium concentrations, which is theorized to support memory, learning, and neuroprotection. Although animal studies are promising and small human trials suggest benefit, more large-scale research is required to confirm long-term safety and efficacy.

benefits

Main effects with level of evidence

Limited

Note on evidence

Evidence is primarily from animal studies and a few small human trials; larger and longer-term human studies are needed.

Cognitive Enhancement

Limited

May improve memory, learning, and executive function, as observed in small trials of healthy older adults with supplementation over 30 days.

Particularly relevant for: older adults · individuals at risk for cognitive decline

2 · PMC (Cognitive Study)7 · Examine.com – Magnesium Threonate

Neuroprotection

Limited

Shown in animal models to enhance synaptic density and protect against cognitive decline in neurodegenerative diseases such as Alzheimer's.

Particularly relevant for: individuals at risk for neurodegeneration

2 · PMC (Cognitive Study)3 · Healthline

Sleep Improvement

Limited

Reported to improve sleep quality and daytime functioning in adults with self-reported sleep issues, per a small randomized trial.

Particularly relevant for: individuals with sleep disturbances

4 · PMC (Sleep Study)7 · Examine.com – Magnesium Threonate

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Generally well-tolerated at recommended doses, but may cause side effects or toxicity if used improperly or in sensitive individuals.

warning notices

Mild gastrointestinal symptoms such as diarrhea or cramping may occur, especially at high doses.
Risk of magnesium toxicity increases in people with impaired kidney function or high supplemental doses.
Safety in pregnancy and breastfeeding is not established.
Avoid use in individuals with kidney disease due to risk of magnesium accumulation and toxicity.
Do not use during pregnancy or breastfeeding due to insufficient safety data.
Separate from tetracycline antibiotics, quinolones, bisphosphonates, and certain diuretics by at least 2–3 hours to minimize interactions.
Monitor for signs of magnesium toxicity (lethargy, nausea, irregular heartbeat) at high doses or in those with impaired renal function.

Known interactions with medications

Quinolone and tetracycline antibiotics
Bisphosphonates
Diuretics

Contraindications / special precautions

Kidney disease
Pregnancy
Breastfeeding

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Magnesium L-Threonate can interact with certain medications, impacting their absorption or effect, and may cause toxicity in individuals with impaired kidney function.