Magnesium L-Threonate
Also called Magtein
A newer form studied for its ability to raise magnesium levels in the brain. Early research points to cognition and memory benefits, but it delivers little elemental magnesium per dose and costs more, so it is usually used specifically for brain support rather than general repletion.
Best for
Cognition and brain health
Absorption
Moderate
Tolerability
Well tolerated
Typical timing
Evening for sleep support; with food to reduce GI upset
How to take Magnesium L-Threonate
A typical dose of Magnesium: 200–400 mg elemental magnesium per day. Best timing: Evening for sleep support; with food to reduce GI upset. The form you choose mainly affects absorption and how easily it sits with your stomach, not the overall dose.
Where to buy Magnesium L-Threonate
Choose a third-party-tested brand; the label should name this form explicitly.
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