Vitamin K2 is a fat-soluble nutrient that plays an important role in regulating calcium metabolism in the body. It activates specific proteins such as osteocalcin and matrix GLA protein, which help direct calcium into bones and teeth. This process contributes to maintaining healthy bone density and skeletal strength. Vitamin K2 may also help prevent calcium from accumulating in blood vessels, which is why it is often studied in relation to cardiovascular health. Foods rich in vitamin K2 include fermented products such as natto and certain types of cheese. Maintaining a balanced diet with these foods may support adequate vitamin K2 intake and contribute to overall metabolic balance.