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Vitamin K2 (MK-7) vs Spirulina
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin K2 (MK-7)
Spirulina
Typical Dosage
100-200mcg MK-7 daily
1-3 grams daily
Best Form
MK-7 (Menaquinone-7)
Powder
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With a fat-containing meal, ideally with Vitamin D3
With meals to enhance absorption
Vitamin K2 (MK-7) Benefits
✓Bone mineralisation
✓Cardiovascular protection (reduces arterial calcification)
✓Works synergistically with Vitamin D3
✓Dental health
✓May reduce fracture risk
Spirulina Benefits
✓High-quality plant-based protein source
✓Rich in B vitamins and iron
✓Supports immune function
✓May improve endurance and muscle recovery
✓Contains antioxidants and anti-inflammatory compounds
Can You Take Both Together?
In most cases, Vitamin K2 (MK-7) and Spirulina 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 Vitamin K2 (MK-7) if your primary goal is: bone mineralisation. Choose Spirulina if your primary goal is: high-quality plant-based protein source. 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.