Vitamin K2 is a fat-soluble vitamin that plays a critical role in directing calcium to where it belongs — bones and teeth — and away from soft tissues like arteries. Here is why this "unsung hero" deserves attention.
What is vitamin K2?
- Part of the vitamin K family alongside K1
- Comes in several forms, notably MK-4 and MK-7
- Activates proteins involved in calcium metabolism

Key benefits
1. Bone health
- Activates osteocalcin, helping bind calcium to bone
- Supports bone density and strength
2. Cardiovascular support
- Activates matrix GLA protein to inhibit arterial calcification
- Helps keep calcium out of artery walls
3. Synergy with vitamin D
- Vitamin D supports calcium absorption; K2 directs it correctly
- Combined use is common for bone and heart health
Which form to choose?
MK-7 is longer acting and often preferred for daily supplementation. High-quality vitamin K2 powder allows precise dosing in capsules, softgels and functional foods.
For anyone prioritising long-term bone and cardiovascular health, vitamin K2 is a smart, science-backed addition.