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L-Theanine vs Magnesium L-Threonate
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
L-Theanine
Magnesium L-Threonate
Typical Dosage
100-200mg daily
1,500-2,000mg (providing ~144mg elemental Mg)
Best Form
L-Theanine (Suntheanine)
Magnesium L-Threonate (Magtein)
Key Benefits
5
5
Evidence Rating
★★★★
★★★
Best Time
With caffeine for focus, or evening for relaxation
Evening — has calming/sleep-promoting effects
L-Theanine Benefits
✓Calm focus without sedation
✓Reduces caffeine jitters when combined
✓Promotes alpha brain waves (relaxed alertness)
✓May improve sleep quality
✓Anxiety reduction
Magnesium L-Threonate Benefits
✓Crosses blood-brain barrier
✓May improve memory and learning
✓Sleep quality improvement
✓Brain magnesium levels
✓Potential neuroprotective effects
Can You Take Both Together?
In most cases, L-Theanine and Magnesium L-Threonate 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 L-Theanine if your primary goal is: calm focus without sedation. Choose Magnesium L-Threonate if your primary goal is: crosses blood-brain barrier. 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.