Nutrition is defined as the science of how the body utilizes food to meet the requirements for development growth repair and maintenance. Nutrition plays a major role in maintaining a good health. Dietary deficiencies of various nutritional elements (Carbohydrates ProteinsLipidsVitaminsMineralsWater) affects every organ of our body including oral soft and hard tissues.The vitality of the periodontal tissues in health and disease depends strongly upon an adequate source of essential nutrients being available to the host.