BioStacksHow Vitamin K supports heart
For heart support, Vitamin K is a supporting ingredient backed by research. K1 (phylloquinone) primarily supports blood clotting, while K2 (menaquinones) directs calcium into bones and teeth rather than arteries. Among K2 forms, MK-7 has a much longer half-life (~96 hours vs 1–8 hours for MK-4), making it far more effective for bone density and cardiovascular health at lower doses.
What dose to look for
Clinical studies typically use 90–200 mcg of vitamin k. MK-7 supplements typically provide 100–200 mcg. Supplements that fall short of this threshold are unlikely to match what clinical trials achieved.
Clinical research
Vitamin K has strong clinical evidence for heart benefits. MK-7 form confirmed in multiple trials for bone density; K1 essential for blood clotting via coagulation cascade Learn more
