Dietetics is concerned with interpretation and communication of the science of nutrition to enable people make informed and practical choices about food and lifestyle, in both health and disease. The study of Dietetics is deeply rooted in the physiological, biochemical and behavioural sciences as well as social, environmental, cultural and psychological factors affecting food accessibility and dietary intake. Aside addressing nutritional needs of patients, dietitians prevent and treat illnesses by promoting healthy eating habits and recommending dietary modifications. Specialty areas in dietetics include clinical dietitian, community dietitian, management dietitian and consultant dietitian.