BioStacks

Best Vitamin K for General Health

Top 10 products ranked

Last reviewed May 2026

Clinical dose: 90–200 mcg

Why Vitamin K for General Health

Vitamin K plays a supporting role in general health. 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. Products below this range may not deliver meaningful results.

What the research says

Vitamin K has strong clinical evidence for general health benefits. MK-7 form confirmed in multiple trials for bone density; K1 essential for blood clotting via coagulation cascade Learn more