Vitamin K is essential for bone mineralization. This bone friendly nutrient is a cofactor for the carboxylation of osteocalcin, a protein produced by osteoblasts that is responsible for binding calcium and depositing it in the bone. This processed is called bone mineralization. Keep out of reach of children. Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged. When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating. VitaGen is NOT responsible for any and all packages detained/impounded/or returned to us by the country’s respective Customs Department. It is the FULL responsibility of the customer to ensure that these vitamins and supplements.