RD Exam Study Materials: CDR's Free Outline, Reference List and Practice Questions for a 2027 Test

CDR's free RD exam study materials at a glance

Everything below is linked from CDR's Examination Resources page and was opened on November 6, 2026:

The page also links Pearson's accommodations page, a Pearson demo test scheduling guide, an explanation of the Authorization to Test, the Test Bundle voucher FAQ and a rescheduling sheet. Those are about logistics, and the RD exam eligibility guide and RD exam cost guide cover them.

The 2027–2031 expanded study outline is your checklist

For a 2027 test date, this is the one document to study from first. CDR approved it on June 25, 2025, and it's the only official statement of what the exam covers from January 1, 2027.

What it gives you. Each domain breaks into lettered parts, numbered tasks and subtopics. Under Domain III, for example, "Enteral and parenteral nutrition" lists access routes, complications, formulas and calculations, indications and contraindications, and placement of feeding tubes. Under Domain IV, food production lists standardized recipes, portion control and yield analysis, and forecasting.

What it doesn't give you. It names topics without explaining them, and it gives weights only for the four domains, not for the parts inside them.

How to use it. Go through it line by line and mark each subtopic as one you can explain, one that's shaky, or one that's new. The shaky and new lines become your study list. The RD exam domains guide summarizes the four domains and their weights on one page.

The reference list is for looking things up, not a reading list

CDR's 2026 reference list is shared by the RD and DTR exams. It runs to seven pages of textbooks, pocket guides, professional standards and government websites, and every page carries the same note: the references are suggestions, studying them doesn't ensure success, and it shouldn't be assumed that exam items are based on any specific one. CDR also asks candidates to check back for updates.

Three practical points:

• You don't need to buy the list. If the textbooks from your program are on it, keep using them.
• Some entries aren't free. The list itself marks several as needing a subscription, such as the Academy's Nutrition Care Manual.
• Editions matter for numbers. The list names the 2022 edition of the FDA Food Code, which is why the RD exam Domain IV guide uses that edition's temperatures and times.

Use the list when the outline names a topic you can't explain and you need a source to read it in. When a clinical value differs between two sources, go with the reference your program used or one on CDR's list. For recall of the facts you look up, you'll be able to review each domain with flashcards planned for launch, 560 in all.

The 30 practice questions show CDR's style, with old domain codes

CDR's practice set has 30 four-option questions, followed by an answer key with a domain classification, then a rationale and a reference for each item. It's the closest free look at how CDR's writers phrase questions and justify answers.

Two limits to keep in mind:

• It's too short to measure readiness. Thirty questions against an exam of 125 to 145 can show you the style, not predict a result.
• Its domain codes predate the 2027 outline. The set is dated September 2024 and marked corrected, and CDR approved the new specifications in June 2025. Its key codes a forecasting question IV.B and a statistics question I.D. In the 2027–2031 outline, IV.B is Menu Development and I.D is Professional Practice, while forecasting sits under IV.C and statistical analysis under I.C.

A practical approach is to answer all 30 once, read every rationale including the ones you got right, and then re-sort your misses by topic under the new outline. Three items are management calculations: a moving-average forecast, an FTE problem and straight-line depreciation. The foodservice math guide works all three formula types step by step, and the clinical calculations guide does the same for the clinical formulas.

The handbook, the tutorial and the Pearson demo test

The handbook isn't content review, but read it once. It sets out the rules that shape how you practice: 125 to 145 questions in three hours, no skipping and no going back, and an on-screen calculator.

As of November 6, 2026, the edition CDR links is the 2026 handbook, which prints the 2022–2026 domains and dates them through December 31, 2026. Don't take your content list from it for a 2027 test, and recheck CDR's page in January 2027 for a new edition.

Two official ways to rehearse the mechanics:

• The tutorial. The handbook describes a 3.5-hour appointment: three hours for the exam, 20 minutes for an introductory tutorial with practice questions, and 10 minutes for a survey afterward.
• The Pearson demo test. CDR's FAQ says a practice test is available at pearsonvue.com/CDR to download, so you can try the navigation and the on-screen calculator before test day.

The RD exam format guide explains the adaptive format, and the RD exam test day guide covers check-in.

What CDR's "How to Prepare for an Exam" sheet recommends

The one-page sheet is written for students and practitioners in general, not for the RD exam alone. Its advice is consistent with how an adaptive, no-review exam works:

• Write a detailed weekly schedule with specific days and times for each topic.
• Study more often for shorter periods, and change topics about every 30 minutes.
• Use more than one kind of resource.
• Complete timed mock exams that explain the correct and incorrect answers, and review missed questions to understand why.
• Choose an early test time if you can, and take the day before the exam off.

One tip needs adjusting for this exam. The sheet says not to spend more than two to three minutes on a question. At the 145-question maximum, three hours leaves about 74 seconds each (Passy's arithmetic), so a steady two minutes per question would run out the clock. The RD exam study plan guide builds the weekly schedule the sheet asks for.

What CDR says about paid RD exam prep

CDR's FAQ and handbook say the same three things: CDR doesn't endorse any particular preparation program, purchasing a prep product is not required, and CDR doesn't guarantee that buying one leads to a pass. It does encourage candidates to use a variety of resources that fit how they learn.

That applies to every paid product, Passy's included. If you decide to add one, check three things first:

1. Which outline it follows. For a 2027 test it should name the four 2027–2031 domains.
2. Whether every answer is explained. CDR's own sheet recommends practice that explains why answers are right or wrong.
3. Whether it matches the format. One question at a time, four options, no going back.

Full Passy prep for this exam isn't on sale yet. You can see what planned full prep includes for the 2027–2031 outline and join the waitlist there.

How to tell which outline a study material follows

Books, decks and question sets rarely say "2022–2026" on the cover. Check these instead:

Material written for the outgoing outline is still useful, because most topics moved rather than disappeared. Keep the content and drop the labels: file each chapter or deck under the new domain where its topic now sits. The 2027 changes guide has a line-by-line map and lists the few headings the new outline no longer names.

Putting the RD exam study materials in order

1. Read the 2027–2031 outline and mark what you can't yet explain.
2. Take two short diagnostic sets. CDR's 30 questions show the official style. The 20 free RD exam practice questions are mixed across the four new domains, each with an explanation.
3. Build a schedule from the weights. The free RD exam study planner weights your days by the 2027 domains.
4. Look things up in your references as the outline sends you to them.
5. Try the Pearson demo test in the last week, so the screen and calculator aren't new on the day.

When 50 questions stop being enough, you can compare the 20 free questions with the 1,700 planned for full prep. Checkout isn't open yet.