What are the functions and roles of vitamin K2?

Vitamin K2 is a fat-soluble vitamin primarily synthesized by intestinal bacteria or obtained from food sources. Its functions in the human body include:

1. Bone health: Vitamin K2 activates osteocalcin, promoting the proper deposition of calcium from the bloodstream into the bones, thereby increasing bone density and helping prevent osteoporosis and fractures.

2. Cardiovascular health: It prevents calcium deposition in blood vessel walls, reduces the risk of atherosclerosis, and helps maintain vascular elasticity and overall health.

3. Blood coagulation: Vitamin K2 also participates in the coagulation process, promoting the formation of prothrombin to accelerate blood clotting and maintain normal clotting time.

4. Liver detoxification: It helps enhance the liver's detoxification function and may potentially slow the progression of cirrhosis to liver cancer.

5. Anti-inflammatory effects: Vitamin K2 has certain anti-inflammatory properties, which can help alleviate chronic inflammatory states and offer potential benefits in the treatment of various chronic diseases.

6. Improvement of muscle function: Particularly in the elderly, it helps maintain muscle mass and strength.

Despite its many benefits, excessive supplementation of vitamin K2 may cause side effects, such as blood clotting issues. Therefore, vitamin K2 supplementation should be conducted only under the guidance of a physician.