All Supplements
Magnesium L-Threonate vs Glycine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Magnesium L-Threonate
Glycine
Typical Dosage
1,500-2,000mg (providing ~144mg elemental Mg)
3-5g daily
Best Form
Magnesium L-Threonate (Magtein)
Powder
Key Benefits
5
6
Evidence Rating
★★★
★★★★
Best Time
Evening — has calming/sleep-promoting effects
Evening for sleep benefits; anytime for general health
Magnesium L-Threonate Benefits
✓Crosses blood-brain barrier
✓May improve memory and learning
✓Sleep quality improvement
✓Brain magnesium levels
✓Potential neuroprotective effects
Glycine Benefits
✓Improves sleep quality and sleep onset
✓Supports collagen formation and joint health
✓Enhances cognitive function and memory
✓Reduces muscle wasting and supports muscle recovery
✓Promotes relaxation and reduces anxiety
✓Supports immune function
Can You Take Both Together?
In most cases, Magnesium L-Threonate and Glycine 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 Glycine if your primary goal is: improves sleep quality and sleep onset. 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.