In Ayurveda, regulation of diet as therapy has great importance. This is because it considers human body as the product of food. An individuals mental and spiritual development as well as his temperament is influenced by the quality of food consumed by him. Food in human body is transformed first into chyle or Rasa and then successive processes involve its conversion into blood, muscle, fat, bone, bone-marrow, reproductive elements and ojas. Thus, food is basic to all the metabolic transformations and life activities. Lack of nutrients in food or improper transformation of food lead to a variety of disease conditions.