Practise Registration Examination for Dietitians with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
Commission on Dietetic Registration (CDR) · 2022–2026 test specifications, effective January 1, 2022 through December 31, 2026; current for October 22, 2026. Licensed Dietitian Nutritionist (LDN) is a jurisdictional licensure designation, not a separate national examination. Rhode Island's official licensing regulations explicitly require the Registration Examination for Dietitians administered by CDR for licensure by examination. The assigned LDN slug is preserved with this evidenced mapping.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- Rhode Island: Dietitians/Nutritionists, 216-RICR-40-05-30
- CDR Examination Resources
- Registered Dietitian Examination: Test Specifications, 2022–2026
- Registration Examination for Dietitians: Study Outline, 2022–2026
- 2026 RD Exam Handbook for Candidates
- NIH Office of Dietary Supplements: Iron
- NIH Office of Dietary Supplements: Vitamin B12
- AHRQ: Use the Teach-Back Method
- NHLBI: How Clinical Trials Work
- Academy of Nutrition and Dietetics: Nutrition Care Process Overview
- Academy of Nutrition and Dietetics: Nutrition Diagnosis
- NIDDK: Treatment for Celiac Disease
- NIDDK: Treatment for Lactose Intolerance
- NIDDK: Healthy Eating for Adults with Chronic Kidney Disease
- CDC: Carb Counting
- NIH Office of Dietary Supplements: Vitamin K
- ASPEN: Appropriate Use of Visceral Proteins in Nutrition Screening and Assessment
- OpenStax: Calculate a Break-Even Point in Units and Dollars
- AHRQ: Plan-Do-Study-Act Worksheet, Directions, and Examples
- Academy/CDR Code of Ethics Informational Handout
- FDA Food Code 2026
- FDA Food Code 2026: Full Text
- NIH Office of Dietary Supplements: Vitamin D
- NIH Office of Dietary Supplements: Folate
- NHLBI: DASH Eating Plan
- OpenStax: The Marketing Mix and the 4Ps of Marketing
- NIH Clinical Research Trials and You: The Basics
- NIDDK: Eating, Diet, & Nutrition for Lactose Intolerance
- NHS: Lactose Intolerance
Registration Examination for Dietitians
Start with 20 free questions, then review the explanations and any topics you missed.
A client obtains most dietary iron from beans and fortified grains. Which addition to a bean meal would most directly enhance nonheme iron absorption?
Registration Examination for Dietitians
Flashcards
Principles of Dietetics
Food, Nutrition and Supporting Sciences — vitamin D activation
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