Good health means one's body is working to its full potential and is not impeded by physical or mental disease. If a machine is treated with care and given proper maintained it is more likely to function efficiently. Similarly the human body is more likely to function to the best of its ability if it's not kept fit and healthy. Thus health may be defined as a state of well being according to body and mind. A healthy diet consists of right amount of protein, carbohydrate, fat, vitamins, minerals and fibre. The energy provided by the above diet, health has to keep the body at the ideal and healthy. Immunization protects people from disease and stimulates the body to produce anti bodies that fight the disease producing protection. Treating illness and preserving good health is the main attribute in any health care centre. Many beneficiaries and beneficial health policies have come into existence in many developed and developing nations for the well being of the citizens. A balanced diet comprising of healthy and diverse food and is key to promoting good health.