All Supplements
L-Theanine vs Astragalus
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
L-Theanine
Astragalus
Typical Dosage
100-200mg daily
500–1,500 mg daily
Best Form
L-Theanine (Suntheanine)
Dried root
Key Benefits
5
6
Evidence Rating
★★★★
★★★★
Best Time
With caffeine for focus, or evening for relaxation
With meals, split into 2–3 doses
L-Theanine Benefits
✓Calm focus without sedation
✓Reduces caffeine jitters when combined
✓Promotes alpha brain waves (relaxed alertness)
✓May improve sleep quality
✓Anxiety reduction
Astragalus Benefits
✓Enhanced immune function
✓Increased energy and stamina
✓Stress adaptation
✓Anti-inflammatory support
✓Potential telomerase activation
✓Cardiovascular health support
Can You Take Both Together?
In most cases, L-Theanine and Astragalus 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 Astragalus if your primary goal is: enhanced immune function. 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.