Nutrition is the relationship of foods to the health of the human body.Proper nutrition means fats, protein, vitamins, minerals and water -are supplied and utilized in adequate balance to maintain optimal health and well-being. Nutritional deficiencies result whenever inadequate amounts of essential nutrients are provided to tissues that must function normally over a long period of time.Good nutrition is essential for normal organ development and functioning, for normal reproduction,growth and maintenance;for optimum activity level and working efficiency;for resisitance to infection and disease;and for the ability to repair bodily damage or injury.No single substance will maintain vibrant health.Although specific nutrients are known to be more important in the fuctions of certain parts of the body,even these nutrients are totally dependent upon the presence of other nutrients for their best effects.Every effort should therefore be made to attain and maintain an adequate,balance daily intake of all the necessary nutrients throughout life.