Historically, diet has been suspected of influencing the etiology of dental caries and hence dietary history can be quiet useful for educating and motivation patients. Nutritional deficiencies can also be one of the the cause of dental caries like insufficient intake of phosphate, or improper dietary calcium-phosphate ratio, however, according to Key's etiology of caries can be understood as triad of interplay between host, microflora and substrate. Role of vitamins, proper diet strategies such as food guide pyramids, my plate concept are also crucial in determining caries likelihood but, the...