She is an Advanced Accredited Practising Dietitian, Fellow of the Academy of Nutrition and Dietetics, and is an internationally renowned nutrition and dietetics expert. She was previously the Director Nutrition and Dietetics, Princess Alexandra Hospital. She has held leadership positions both within the Dietitians Association of Australia and the Academy of Nutrition and Dietetics (formerly American Dietetic Association). Maree developed the Malnutrition Screening Tool to identify patients at risk of malnutrition. Her innovative malnutrition screening tool has been implemented in many hospitals worldwide.