All Supplements
Vitamin K2 (MK-7) vs Astaxanthin
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin K2 (MK-7)
Astaxanthin
Typical Dosage
100-200mcg MK-7 daily
4-12 mg daily
Best Form
MK-7 (Menaquinone-7)
Softgel capsule (natural astaxanthin from Haematococcus algae)
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With a fat-containing meal, ideally with Vitamin D3
With meals containing fat for optimal absorption
Vitamin K2 (MK-7) Benefits
✓Bone mineralisation
✓Cardiovascular protection (reduces arterial calcification)
✓Works synergistically with Vitamin D3
✓Dental health
✓May reduce fracture risk
Astaxanthin Benefits
✓Powerful antioxidant protection against free radical damage
✓Supports eye health and reduces age-related macular degeneration risk
✓Enhances muscle recovery and reduces exercise-induced inflammation
✓Improves cardiovascular function and blood flow
✓Supports cognitive function and may protect against neurodegeneration
Can You Take Both Together?
In most cases, Vitamin K2 (MK-7) and Astaxanthin 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 Astaxanthin if your primary goal is: powerful antioxidant protection against free radical damage. 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.