Kirthee qualified as a Dietitian in 1997. She started working at Grey’s Hospital as a Clinical Dietitian in 1998. In 2004 she left the position of Senior Dietitian at Grey’s Hospital to take up a LEAP lecturing position at UKZN. In 2008 she was appointed to a permanent position in the Discipline of Dietetics and Human Nutrition where she teaches Human Nutrition to first and second year students. Her areas of research include clinical nutrition and the potential of provitamin A-biofortified maize in alleviating vitamin A deficiency.