Synopsis The habitual dietary of a community or a family have a complex but important role in diseases of multiple aetiology. At one extreme of a range of nutritional relevance to the causation and management, disease lies in the classical inborn error of metabolism, galactoasaemia, in which there is an inherited lack of a single enzyme, which makes it. Applied Nutrition and Diseases, as is obvious from the name, contains highly useful information on nutritional assessment; nutritional aspects of diseases; Infective agents in food; common diseases; methods of data collection; mineral and trace elements; protein energy malnutrition; prevention of nutritional disorder and proteins and fats. The whole matter is analysed in scientific manner.