Arterial stiffness is a term to describe calcification and biological aging of the artery, oftentimes due to high blood pressure. It is more commonly knows as atherosclerosis, or thickening of the arteries. In a study of 244 postmenopausal women, 180 micrograms of menaquinone-7 (Vitamin K2) was administered on a daily basis. There were multiple tests of carotid and aortic artery health performed on the participants. There was a statistically significant improvement in arterial stifness associated with Vitamin K2, which was most pronounced in the women with the most arterial stiffness at the beginning of the study.
Vitamin K2, as MK-7, Improved Artery Health In Study of Postmenopausal Women
Study Title: "Menaquinone-7 supplementation improves arterial stiffness in healthy postmenopausal women. A double-blind randomised clinical trial."
Number of Participants: 244
Length of Study: 3 years
Type of Study: Double-blind randomised clinical trial
Publication: Thrombosis and Haemeostasis
Study Result: Levels of stiffness in the carotid and aortic arteries were measured in women taking 180 micrograms of menaquinone-7 (Vitamin K2) . There was a significant reduction in arterial stiffness, especially in those subjects starting the study with high levels of arterial stiffness.
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