All Supplements
L-Theanine vs Vitamin K2 (MK-7)
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
L-Theanine
Vitamin K2 (MK-7)
Typical Dosage
100-200mg daily
100-200mcg MK-7 daily
Best Form
L-Theanine (Suntheanine)
MK-7 (Menaquinone-7)
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With caffeine for focus, or evening for relaxation
With a fat-containing meal, ideally with Vitamin D3
L-Theanine Benefits
✓Calm focus without sedation
✓Reduces caffeine jitters when combined
✓Promotes alpha brain waves (relaxed alertness)
✓May improve sleep quality
✓Anxiety reduction
Vitamin K2 (MK-7) Benefits
✓Bone mineralisation
✓Cardiovascular protection (reduces arterial calcification)
✓Works synergistically with Vitamin D3
✓Dental health
✓May reduce fracture risk
Can You Take Both Together?
In most cases, L-Theanine and Vitamin K2 (MK-7) 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 Vitamin K2 (MK-7) if your primary goal is: bone mineralisation. 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.