A dietitian is an expert in dietetics; that is, human nutrition and the regulation of diet. A dietitian alters their patient's nutrition based upon their medical condition and individual needs. Dietitians are regulated healthcare professionals licensed to assess, diagnose, and treat nutritional problems.
A registered dietitian or registered dietitian nutritionist is a dietitian who meets all of a set of special academic and professional requirements, including the completion of a bachelor's degree with an accredited nutrition curriculum, an internship at an approved health-care facility, foodservice organization, or community agency, and satisfactory performance on a registration exam.
