Food nourishes the body and gives us energy to get through each day. Healthy eating is fundamental to good health and is a key element in healthy human development, from the prenatal and early childhood years to later life stages. Healthy eating is equally important in reducing the risk of many chronic diseases.

Good nutrition is essential for normal organ development & functioning, for normal reproduction, for growth, for maintenance, for optimum activity level & working efficiency, for resistance to infection & disease and for ability to repair bodily damage or injury.

Nutrition is fundamental to a sense of well-being. Proper nutrition means that all the essential nutrients – carbohydrates, fats, protein, vitamins, minerals & water are supplied and utilized in adequate balance to maintain optimal health & well being.

Nutritional deficiencies may result in disease whenever inadequate amounts of these essential nutrients are provided to the tissues that must function normally over long period of time.

No single substance will maintain vibrant health. Certain nutrients are known to be more important in function of certain parts of body; even these nutrients are also dependent on other nutrients for their best effects. Therefore every effort should be made to attain & maintain an adequate and balanced daily intake of all those nutrients that are essential throughout life.

Nutritional requirements are changed in critically ill conditions. Many persons who are critically ill are at nutritional risk specially when intake has been low and metabolic demands are increased. Previously healthy person who become critically ill usually tolerate short period of reduced nutrient intake. However after several days of stress & starvations, metabolic & immunological changes develop that may result in problem such as depletion of the body's energy & protein stores, delayed wound healing and decreased resistance to infection. The special nutrition support is required to maintain the health & well being.