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Magnesium L-Threonate vs L-Glutamine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Magnesium L-Threonate
L-Glutamine
Typical Dosage
1,500-2,000mg (providing ~144mg elemental Mg)
5-10g daily
Best Form
Magnesium L-Threonate (Magtein)
L-Glutamine powder
Key Benefits
5
5
Evidence Rating
★★★
★★★
Best Time
Evening — has calming/sleep-promoting effects
Post-workout or divided throughout the day with meals
Magnesium L-Threonate Benefits
✓Crosses blood-brain barrier
✓May improve memory and learning
✓Sleep quality improvement
✓Brain magnesium levels
✓Potential neuroprotective effects
L-Glutamine Benefits
✓Supports intestinal barrier integrity
✓Enhances immune cell function
✓Promotes muscle recovery and protein synthesis
✓May improve gut health and reduce leaky gut
✓Supports nitrogen balance during catabolic states
Can You Take Both Together?
In most cases, Magnesium L-Threonate and L-Glutamine can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Magnesium L-Threonate if your primary goal is: crosses blood-brain barrier. Choose L-Glutamine if your primary goal is: supports intestinal barrier integrity. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.