Dieticians play a major role in the hospital kitchen. They make sure the raw materials received are stored properly, monitor cleanliness in the kitchen, evaluate the cooked food before serving it to the patient, etc. They make sure cleanliness, hygiene and sanitation are maintained regularly in all the areas of the kitchen including the pre-preparation and preparation area, washing area, storage area, food trolleys, floors and tiles, ventilators, rubbish disposal, etc.