Depending on the type of qualifications, Nutritionists have expertise in a range of services including public health nutrition, community health and tertiary education related to nutrition. Nutritionists may design, coordinate, implement and evaluate a range of population health interventions to improve the wellbeing of individuals, communities and the population as a whole, through better food and nutrition.

Nutritionists may also work in a number of other roles including research, nutrition consultants and advisors, public health and health promotion officers, community development officers, quality and nutrition coordinators, food technologists, media spokespeople and more.

To be eligible as an Accredited Nutritionist, tertiary studies in the area of human nutrition or food and nutrition must be completed. Nutritionists are not qualified to provide medical nutrition therapy. This includes both individual and group dietary interventions.