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Free RD Exam Prep

Registration Examination for Dietitians (RDN/RD)

Pass your RD exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

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Your Study Path

RD CDR Dietetics Exams License: Complete Roadmap

Follow this path to maximize your chances of passing on the first try

1

Phase 1You are here

Reinforce dietetics principles and evidence-based decision foundations.

55
hours
2

Phase 2

Prioritize nutrition care for individuals and groups, the largest exam domain.

95
hours
3

Phase 3

Strengthen management and foodservice-system competencies.

70
hours
4

Phase 4

Run full timed blocks and remediate weak objectives before test day.

40
hours
Estimated total study time
260 hours
That's about 26 weeks at 10 hours/week

Can You Take the RD Exam?

Check if you meet the basic eligibility requirements

Age
Education
Minimum graduate degree from a USDE-recognized accredited institution (or equivalent foreign degree)
Additional Requirements
  • CDR exam authorization is required before scheduling with Pearson VUE
  • Authorization to test expires after one year or after an exam attempt
  • Unsuccessful candidates must reauthorize and submit another exam fee

RD Quick Facts

Time to Get Licensed

10-16 weeks for most candidates

From start to license in hand

Exam Provider

Pearson VUE

In-Person Only
Schedule Your Exam

Retake Policy

After an unsuccessful attempt, candidates must reauthorize and pay a new fee; CDR policy applies a 45-day wait before retesting unless a waiver is granted.

Total Cost Breakdown

Exam Fee$250
Total Estimated Cost$250-$350 depending on retake strategy
Why Choose Us

Free RD Prep That Actually Works

The official pass rate is CDR does not publish a consolidated annual RD first-time pass-rate percentage in the public handbook.. Our students do better.

280 Practice Questions

RD blueprint-aligned sets covering all four official CDR domains.

AI-Powered Learning

Adaptive support for care-process decisions, calculations, and program-management scenarios.

2026 Updated

Aligned with current CDR handbook guidance and official exam specifications.

Free Access

Start RD exam prep free before paying registration and scheduling fees.

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What You'll Study

5 chapters covering everything you need to pass

RD Exam Details

Registration Examination for Dietitians (RDN/RD)

Administered by Commission on Dietetic Registration (CDR)

Official Source
Scaled score 25 (scale 1-50)
Passing Score
125-145
Questions
2.5
Hours
$250
Exam Fee
Study time: 180-260 hours
Prerequisites: Graduate degree, ACEND-accredited didactic coursework, and ACEND-accredited supervised practice pathway.
Valid for: Ongoing registration with annual maintenance and 5-year professional development cycles

Exam Content Breakdown

Based on the official Commission on Dietetic Registration (CDR) content outline

Principles of Dietetics21%

Food and nutrition sciences, research, ethics, and evidence-based foundation skills.

Nutrition Care for Individuals and Groups45%

Assessment, diagnosis, intervention, monitoring, and counseling across populations.

Management of Food and Nutrition Programs and Services21%

Program operations, quality management, regulations, and team leadership responsibilities.

Foodservice Systems13%

Procurement, production, safety, and delivery systems for food and nutrition services.

What's Included

5 Chapters

Complete exam coverage

Practice Quizzes

With detailed explanations

Free to Start

No credit card required

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What's Next After the RD?

After passing the RD, you can pursue these career paths

CDR Board Certified Specialist

Pursue specialty credentials after documented RD practice experience.

Coming Soon

Advanced Practice Certification (CDR)

Progress into advanced-level credentialing as your professional role expands.

Coming Soon

Nutrition Leadership Roles

Move into clinical, community, and foodservice management pathways.

Coming Soon

RD Exam FAQ

Official Commission on Dietetic Registration (CDR) Resources

Verify information with these official sources

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