Magnesium L-Threonate
A uniquely brain-friendly form of magnesium that crosses the blood-brain barrier — developed specifically to support memory, cognition, and sleep.
Benefits
- +Crosses the blood-brain barrier more effectively than other magnesium forms
- +May improve memory and cognitive function
- +Supports better sleep quality
- +Emerging evidence for neuroprotection
- +May help with anxiety-related symptoms
Dosage & Cost
Magtein® is the most studied brand name form. Don't confuse the total weight on the label with elemental magnesium content.
Side Effects
- !Can cause loose stools or digestive discomfort at high doses
- !Drowsiness (especially in the evening — which can be a feature, not a bug)
- !Headaches in some people when starting
- !More expensive than other magnesium forms
Food Sources
- • General magnesium sources: pumpkin seeds, almonds, dark chocolate, spinach, avocados
- • L-threonate itself is not a food-derived form — supplementation is the only way to get it
References & Links
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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.