Health concerns about fat and cholesterol these days have prompted many people to become vegetarians. As a result, nutritional deficiencies, that sometimes occur, reveal themselves during dental exams. Although vegetarian diets vary, some vegetarians, particularly those who do not consume any food of animal origin, can experience deficiencies in calcium, vitamin D, riboflavin, vitamin B12 or complete proteins. They can, however, get all of the nutrients they need by eating the right amount of fruits, vegetables, grains, and legumes. Anyone considering adopting a vegetarian diet should seek counseling from their dentist or a nutritionist to learn about substituting foods to get all of the necessary nutrients. Diet is a very important part of an individual’s medical history and patients should always inform their dentist if they adhere to a vegetarian or any other special diet.