Vitamin K2 (menaquinone) works synergistically with vitamin D3 to direct calcium to bones and teeth while preventing arterial calcification. It activates proteins that regulate calcium metabolism, making it valuable for bone health in impact athletes.
Emerging research suggests K2 may support cardiovascular health and improve insulin sensitivity – both important for athletic performance and recovery. Weightlifters and runners may particularly benefit from the bone density support.
No known toxicity at high doses, but may interact with blood thinners like warfarin.
Synonyms: Menaquinone, MK-7
Benefits:
- Supports bone mineralization
- May improve cardiovascular health
- Works with vitamin D for calcium regulation
Sources: Natto, fermented foods, grass-fed dairy
Notes: MK-7 form has longer half-life than MK-4