Dieticians are governed by Indian dietetic association in India or they can get credentials through the American dietetic association. Basically they do internships through a hospital which do meal plans for patients, work for medical facilities & they giving nutritional full guidelines for large numbers of patients. They counsel them on their nutritional needs especially patients trying to overcome specific illnesses like diabetes, cancer, etc.They can work in schools & other institutions also.
Nutritionist is different from dietician because they are not a governed degree. They can do the degree from different educational facilities. They can work as fitness instructors or for athlete’s advisor, so they have knowledge in the field. Nutritionist is usually the person to see if you want to learn how to increase your performance in sprouts or fitness by nutrition & possibly learn for weight loss.