Vitamin K2 does not treat atherosclerosis. Vitamin K2 is a nutrient and not a drug, so it does not have a therapeutic effect, but it has a secondary effect on the improvement of atherosclerosis. Atherosclerosis is the deposition of lipid substances in the endothelium of blood vessels, forming plaques attached to the walls of blood vessels, which in turn affects the elasticity of blood vessels. The plaque contains lipids, fibrous tissue and calcium. Currently, the main drugs used to treat atherosclerosis are lipid-adjusting drugs, thrombolytic and anticoagulant drugs, and antiplatelet drugs. Vitamin K2 can activate matrix GLA protein (MGP), absorb calcium in the calcium plaque, so as to remove the calcified hard plaque of the blood vessel wall, and then soften the blood vessels, prevent atherosclerosis, reduce the heart attack caused by atherosclerosis, but also has the effect of pro-coagulation to a certain extent to play a supplementary therapeutic role, but can not be used directly for the treatment of atherosclerosis. It is recommended that patients with atherosclerosis go to the hospital in time and follow the doctor’s instructions.