營養科主任的主要職責包括─ (a) 發展有關營養的普查計劃及評估方法； (b) 策劃並參與有關本港市民在營養及飲食習慣的研究工作； (c) 發展、策劃、進行及評核有關營養及飲食的健康推廣計劃； (d) 提供輔導及擬備有關營養及飲食健康的教材； (e) 透過傳播媒介發布與健康相關的信息； (f) 為從事營養工作的醫療護理人員，提供指引及在職訓練；以及 (g) 為飲食建議、審批營養及健康聲稱、以及相關研究提供專業意見及行政支援。 (備註：可能須不定時工作。)

A Dietitian is mainly deployed on – (a) developing screening programmes and assessment tools on nutrition; (b) planning of and participating in nutrition and dietary studies of the community; (c) developing, planning, conducting and evaluating health promotion programmes on nutrition and diets; (d) providing counselling to clients and preparing health education materials on nurtirion and diets; (e) disseminating health information through media channels; (f) giving advice and providing in-service training to medical and nursing staff on nutrition and diets; and (g) providing technical advice and administrative support to the assessment of nutrition and health claim applications and related studies. (Remarks: May be required to work irregular hours.)