All living organisms need food for growth, work, repair and maintaining life processes. Food is made up of several components such as proteins, carbohydrates, fats, minerals and vitamins. Each of these components is required in a specific amount because each of them has a definite role to play in the body. A well balanced diet is necessary for the healthy growth of the body and mind. Good health is a necessary condition for our purposeful existence in this world. The World Health Organization (WHO) has defined health as “a state of complete physical, mental and social well being and not merely the absence of disease or infirmity”. A country can progress only if her citizens are healthy. It is the task of the ministry of health to provide good health care and other health facilities to everyone.