RD: Registered Dietitian Nutritionist Examination Practice Test
Build your confidence for RD: Registered Dietitian Nutritionist Examination. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
Commission on Dietetic Registration RD exam covering nutrition sciences, medical nutrition therapy, food service systems management, community nutrition, and counseling for dietitians. Administered by CDR. Key domains include Nutrition Care for Individuals and Groups, Principles of Dietetics, Foodservice Systems and Management of Food and Nutrition Programs and Services.
Sample Questions
Choose an answer and explore the explanation to see how practice works.
Which financial metric represents the cost of food sold divided by food sales, expressed as a percentage?
A 42-year-old woman has a BMI of 21, hemoglobin 9.8 g/dL, MCV 72 fL, ferritin 9 ng/mL, transferrin saturation 8%, and is otherwise healthy. Which intervention is most appropriate as first-line nutrition therapy?
Which HACCP step identifies points where biological, chemical, or physical hazards can be controlled to prevent foodborne illness?
Which intake reference is set at the level estimated to meet the needs of 97-98% of healthy individuals in a life-stage and sex group?
An RDN counsels a pregnant 28-year-old (BMI pre-pregnancy 22). Recommended total weight gain over the pregnancy is:
Career Opportunities & Salary
Exam insights and study advice
Earning the RDN credential is not merely an academic milestone; it is the gateway to legally protected practice titles and scope in many states, directly impacting your employability and authority. This credential allows you to provide Medical Nutrition Therapy (MNT), a billable service critical for managing chronic diseases like diabetes and heart failure in hospitals, clinics, and private practice. It signifies to patients, physicians, and healthcare systems that you possess the validated expertise to make complex nutrition decisions that affect health outcomes, reimbursement, and quality of life. In essence, passing this exam transforms your education into a legally and professionally recognized capacity to improve public health.
What this exam covers
Use the published domain weights to plan your study. Practice results do not predict your certification exam score.