Nutrition In Cancer Presentation

NUTRITION IN CANCER INTRODUCTION TO CANCER It is a disease that results from abnormal and uncontrollable proliferation of cells at a particular site. The cells grow without control. Cancer develops from mutation of genes that regulates cell division. The mutation silences the genes that ordinarily monitor replication of DNA for chemical errors. The development of cancer is called carcinogenesis which often proceeds slowly and continues for several decades. The affected cells rapidly divide in an uncontrolled way but do not differentiate to specialized cells but form an abnormal mass called a tumour or neoplasm.. A tumour is a new growth of tissue which form an abnormal mass with no function. Blood vessels form to supply the tumor with nutrients, the tumor may invade healthy tissues and spread.Malignant tumours are tumours that threaten health and requires treatment. They usually invade surrounding structures and can spread or metastasize to distant sites via the blood or lymph. Benign tumours are tumours that stop growing without intervention or those which can be removed surgically and pose no threat to health. They are usually enclosed in membranes that prevent penetration to other tissues Cancer development processCarcinogenesis is thought to occur in three phases i.e. initiation,