Medical

CDR RD Exam

Registered Dietitian Exam

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Expert-Backed Prep Step confidently into the dietetics profession with prep designed by registered dietitians and exam specialists. Every question mirrors the real exam—aligned to the latest CDR outline—and includes clear explanations to help you master key concepts, not just memorize facts.

1,000+ Practice Questions That Matter Build confidence across all four domains: Principles of Dietetics, Nutrition Care for Individuals and Groups, Management of Food and Nutrition Programs and Services, and Foodservice Systems. With questions modeled after the actual exam, you’ll study what counts—and nothing you don’t need.

Explanations That Stick Every question includes step-by-step reasoning so you can learn why each answer is right (or wrong). Whether you're reviewing fundamentals or refining your strategy, our explanations help you retain the material and apply it with confidence.

Pass Guarantee If you don’t pass the RD exam on your first try, we’ll refund your subscription for up to three months. We're here to support your goal of becoming a credentialed dietitian—no matter how long it takes.

Know What to Focus On From macronutrients to foodservice operations, our app tracks your strengths and weaknesses so you can make every study session count. See what needs attention and improve your readiness, one quiz at a time.

Flexible for Your Lifestyle Practice on your own terms with custom quizzes, daily drills, mock exams, and more. Whether you're between clients or balancing internship hours, your prep fits neatly into your schedule.

You're Almost There Becoming a Registered Dietitian means turning your passion into purpose. Join thousands of dietetics students using our expert-backed prep to pass the CDR RD exam and launch careers that make an impact. Start studying free today.

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What will your journey look like?

  • Create a fully free account in seconds—no credit card required.
  • Get a personalized performance report and uncover exactly where you need to improve.
  • Learn the science behind nutrition, dietetics, foodservice systems, and clinical care from expert-backed questions.
  • Choose between the free version or unlock full access with a premium plan tailored to your goals.
  • Pass the CDR RD exam with confidence—or get your money back, no questions asked.
  • Launch your career as a Registered Dietitian and start making a difference in people’s lives.

Exam Curriculum

I. Principles of Dietetics

Questions 242

II. Nutrition Care for Individuals and Groups

Questions 409

III. Management of Food and Nutrition Programs and Services

Questions 209

IV. Foodservice Systems

Questions 138

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