A nutritionist may be an individual with a tertiary qualification in the field of nutrition who can provide services in the area of nutrition, public health nutrition, policy and research, and community health. However, the term “nutritionist” is not regulated. Therefore, individuals with simply an interest in diet and nutrition, who have limited qualifications in nutrition and have not received appropriate training in medical nutrition therapy or nutrition counselling may also call themselves nutritionists. On the other hand, a dietitian is an individual who has received a tertiary qualification in the field of nutrition and dietetics. Hence, apart from being able to provide the same services as a qualified nutritionist, a dietitian has been rigorously trained, supervised, and assessed, before being qualified to provide individual dietary counselling, group dietary therapy, medical nutrition therapy, and foodservice management. In the clinical setting, a dietitian is qualified to use medical nutrition therapy to prevent and treat different disease states to optimise the health of individuals. This includes but is not limited to providing nutrition therapy and education to people with overweight and obesity, diabetes, heart disease, liver disease, kidney disease, cancer, or who have undergone surgery. Dietitians who are accredited with national boards like the Academy of Nutrition and Dietetics in the United States or Dietitians Australia in Australia will also have to undergo continuing professional development each year to maintain their credentials.