Vitamin K
K1 · K2
Definition
A fat-soluble vitamin needed for blood clotting. K1 is abundant in leafy greens, K2 in fermented foods (natto, cheese).
In the body
Activates clotting factors and the bone protein osteocalcin.
Watch out for
People on anticoagulants such as warfarin need to keep their intake steady.
Products showing this ingredient: 180
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