Developing nutrition plans for clients. Compiling information and tracking client progress towards their health goals. Plan and conduct food service or nutritional programs to assist in the promotion of health and control of disease. Nutrition is a key element of good health. Dietitians promote good dietary health and treat nutritional problems by providing practical advice about food choices, based on scientific research. The ability to interact well with people from a wide range of backgrounds is essential. Dietitians work on a group and an individual basis with people of all ages.