Key Benefits
- Activates proteins that direct calcium to bones
- Helps prevent arterial calcification
- Works synergistically with vitamin D3
- Supports dental health
- May support cardiovascular health
What is Vitamin K2?
Vitamin K2 (menaquinone) is one of the two main forms of vitamin K. Unlike K1 (found in leafy greens), K2 is found in fermented foods and animal products, and it has distinct functions in the body.
The Calcium Paradox
K2 solves what scientists call the "calcium paradox"—the observation that calcium supplementation can sometimes lead to arterial calcification while bones remain weak. K2 activates proteins that direct calcium to bones and teeth while preventing its deposition in soft tissues.
K2 Subtypes
The two most important subtypes are MK-4 (found in animal products) and MK-7 (found in fermented foods like natto). MK-7 has a longer half-life in the body, making it more effective at lower doses.
Synergy with D3
Vitamins D3 and K2 work synergistically. D3 increases calcium absorption, while K2 ensures that calcium is properly utilized. Many experts recommend taking them together.
Food Sources
Natto (fermented soybeans) is the richest source of K2 as MK-7. Other sources include hard cheeses, egg yolks, butter from grass-fed cows, and chicken liver.
Disclaimer: This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any new supplement regimen.