All Supplements
L-Theanine vs Krill Oil
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
L-Theanine
Krill Oil
Typical Dosage
100-200mg daily
1,000–3,000 mg daily
Best Form
L-Theanine (Suntheanine)
Softgel capsules
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With caffeine for focus, or evening for relaxation
With meals for optimal absorption
L-Theanine Benefits
✓Calm focus without sedation
✓Reduces caffeine jitters when combined
✓Promotes alpha brain waves (relaxed alertness)
✓May improve sleep quality
✓Anxiety reduction
Krill Oil Benefits
✓Supports heart health and cholesterol levels
✓May reduce joint inflammation and arthritis symptoms
✓Promotes brain function and cognitive clarity
✓Rich in antioxidants through astaxanthin content
✓May improve mood and reduce anxiety
Can You Take Both Together?
In most cases, L-Theanine and Krill Oil 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 Krill Oil if your primary goal is: supports heart health and cholesterol levels. 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.