RD exam handbook and study guide

The free official documents

• RD Exam Handbook for Candidates (2026): eligibility to test, scheduling, ID, exam rules, scoring and retakes.
• RD Test Specifications 2022-2026: the four domains and their weights.
• RD Study Outline 2022-2026: the topics under each domain in detail.
• 2027-2031 RD Test Specifications and Expanded Study Outline: for exams from January 1, 2027.
• RD Examination References: CDR’s suggested reading list.
• RD Examination Practice Questions: practice items with answers from CDR.

Which outline should you use?

It depends on your test date. The 2022-2026 specifications apply through December 31, 2026. From January 1, 2027, CDR uses the new 2027-2031 specifications.

The new outline reorganizes the exam. Community and public health nutrition gets its own domain (22%), and human nutrition and medical nutrition therapy becomes 40%. If you’re testing early in 2027, study from the new outline.

What about Jean Inman’s study guide?

It’s a well-known paid review, not an official CDR guide. Inman Seminars sells a review manual with recorded lectures, and a two-day live class on Zoom. As of October 2026 both cost $385.

CDR doesn’t endorse any prep product. It says buying one isn’t required to pass. See our where to learn page for more options and prices.

How to use the outline

1. Print the study outline for your test date.
2. Rate yourself on each topic: strong, okay or weak.
3. Spend the most time on Nutrition Care (45% of the current exam), then your weak areas.
4. Use CDR’s reference list to fill gaps, not to read cover to cover.
5. Finish with timed practice questions, answering each one once without going back.