All Supplements
Magnesium L-Threonate vs L-Arginine
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Magnesium L-Threonate
L-Arginine
Typical Dosage
1,500-2,000mg (providing ~144mg elemental Mg)
2-3g per day
Best Form
Magnesium L-Threonate (Magtein)
L-Arginine HCl
Key Benefits
5
5
Evidence Rating
★★★
★★★
Best Time
Evening — has calming/sleep-promoting effects
30-60 minutes before exercise or 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-Arginine Benefits
✓Enhanced blood flow and circulation
✓Cardiovascular health support
✓Improved exercise performance
✓Wound healing and tissue repair
✓Immune system support
Can You Take Both Together?
In most cases, Magnesium L-Threonate and L-Arginine 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-Arginine if your primary goal is: enhanced blood flow and circulation. 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.