Dietitians maintain and promote the health of individuals, groups, and the community by applying their knowledge of food and human nutrition. Doing this essentially employs the following tasks:

• Assessing the nutritional well-being of patients to customise their medical nutrition therapy and implement specific diet strategies.
• Providing dietary counselling and special nutritional care plan for patients who can not eat by mouth and have to be fed through a tube or directly into the bloodstream.