Dietetics has nutritional science as its core. It is an interdisciplinary and applied subject that is concerned with the application of nutritional science for treatment of disease and the promotion of health for individuals and groups. It is concerned primarily with ensuring that individuals have the appropriate nutrients from the food they eat. Dietetics requires the integration of a broad range of natural and social sciences so that practitioners can educate and empower individuals and groups to improve food intake to the benefit of health.
Dietetics is concerned with the nutrition of the individuals both in health and disease at a primary level and extends through to tertiary care in acute specific medical condition. Therefore, dietetics is essentially the manipulation of diet to improve health. This requires reflective practice, systematic clinical reasoning and a problem-solving approach as well as an understanding of individual circumstances, including age, gender, socio-economic status, disease state, food habits and lifestyle, to assess nutritional status and formulate appropriate dietary advice.