How much vitamin k should I take for general health?

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.

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Clinical dose: 90–200 mcg

How Vitamin K supports general health

For general health 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 general health benefits. MK-7 form confirmed in multiple trials for bone density; K1 essential for blood clotting via coagulation cascade Learn more