VITAMIN K IS AN ESSENTIAL COFACTOR IN THE HEPATIC SYNTHESIS OF PROTHROMBIN (FACTRO II) AND OTHER BLOOD CLOTTING FACTORS (FACTORS VII, IX, AND X AND PROTEINS C AND S) AND IN THE FUNCTION OF PROTEINS SUCH AS OSTEOCALCIN IMPORTANT FOR BONE DEVELOPMENT. VITAMIN K DEFICIENCY MAY DEVELOP IN NEONATES AND CAN LEAD TO HAEMORRHAGIC DISEASE OF THE NEWBORN.