The Registered Dietitian (RD) is a supportive member of the professional health care team who directs nutritional care to achieve optimal health of individuals and groups. Dietitians and nutritionists promote healthy eating habits, evaluates clients’ diets, and suggests diet modifications to help prevent disease and treat illnesses. RDs who manage large scale food service systems for institutions such as hospitals, prison and schools are usually referred to as Management Dietitians. Consultant Dietitians, often work under contract with various entities such as with sport teams, extended health care facilities or in a group or private practice. Dietitians in Medical Nutrition Therapy (MNT) assess nutritional needs of patients, prescribe a therapeutic plan, and assess the results. Community Dietitians work in public health clinics, supermarkets and home health agencies. Within the last few years, interest in nutrition has led to opportunities in food manufacturing, advertising and marketing. Some dietitians engage in research activities to enhance the profession.