Vitamin K1 (phylloquinone) is a fat-soluble vitamin necessary for the formation of prothrombin, which is required for normal blood clotting.* It also plays a role in bone formation and healthy liver function, and may help maintain female reproductive health.* In a double-blind, placebo-controlled trial of 181 post-menopausal women, vitamin K significantly enhanced the effectiveness of […]

Vitamin K1 (phylloquinone) is a fat-soluble vitamin necessary for the formation of prothrombin, which is required for normal blood clotting.* It also plays a role in bone formation and healthy liver function, and may help maintain female reproductive health.* In a double-blind, placebo-controlled trial of 181 post-menopausal women, vitamin K significantly enhanced the effectiveness of supplementation with calcium, vitamin D, and magnesium. The results showed that the study participants using vitamin K along with the other nutrients had less bone loss than those in the other two groups.6