nutritionist are health providers who specializes in the study of nutrition,which includes preventive nutrition ,diseases related to nutrient deficiencies , and the science of nutrition. dietitians can be considered as a nutritionist, but not all nutritionists are dietitians. in fact, nutritionist is not regulated by any professional regulated body or a legally protected term, hence anyone can essentially refer to themselves as nutritionist, whether they are self-taught or possess a graduate degree in nutrition. nutritionists are often found in hospitals, outpatient clinics,schools,community and public health settings, culinary and food service, scientific research,businesses,in private practice and other health care facilities.