Know exactly what to study before exam day.
Free practice for the Registered Dietitian exam, one domain at a time. Every question is explained, and every section ends with a study plan built from the questions you missed.
Example results after a Domain II section
72%18 of 25 correct
Enteral and parenteral nutrition
Missed 3 of 4 questions
Drill tube feeding and PN calculations, including dextrose at 3.4 kcal/g.
MNT for kidney disease, diabetes, and heart health
Missed 2 of 3 questions
Review CKD protein targets before and on dialysis.
Counseling and behavior change
Missed 1 of 2 questions
Review the stages of change and reflective listening.
Practice exams
Each exam is split into sections that follow the official content outline, so you can focus on one area at a time.
Registered Dietitian (RD) exam
4 sections of 25 questions, drawn from a bank of 102 original questions. Free, no account needed.
- Principles of Dietetics
- Nutrition Care
- Foodservice Systems
- Management
Practice exams for more credentialing exams are in development.
How it works
A section takes about 30 minutes.
Pick a domain
Choose one of the four exam domains and turn the timer on or off.
Answer 25 questions
Questions and answers are shuffled each time. Flag anything you want to revisit before you submit.
Get your study plan
See your score, the topics you missed most, what to review for each, and an explanation for every question.
Original questions
Written from the CDR's public content outline and current practice guidelines, not copied from other prep materials.
Explanations that cite the rule
Each answer names the formula or guideline behind it, so you learn the reasoning and can check it yourself.
Private by default
No account and no sign-up. Your section scores are saved only in your own browser.
Get updates
Hear when new questions and new exams are added. No more than a couple of emails a month.
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