Nutrition exam prep

Registered Dietitian Nutritionist (RDN) practice test

2026-2027 exam practice page

6 practice questions

Answers and rationales included. Switch between Exam and Study modes.

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CDR
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6 questions / 75 min
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Registered Dietitian Nutritionist (RDN)

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Question 1 Medical nutrition therapy

Question 1: Medical nutrition therapy

A patient with chronic kidney disease stage 4 not on dialysis should generally consume how much protein per kilogram of body weight?

Question 2 Nutrition assessment

Question 2: Nutrition assessment

According to current ASPEN guidance, which method is more appropriate than visceral proteins for identifying adult malnutrition during nutrition assessment?

Question 3 Pediatric MNT

Question 3: Pediatric MNT

Which feature is most consistent with kwashiorkor in a young child?

Question 4 Enteral formula selection

Question 4: Enteral formula selection

Which enteral formula type is most appropriate for a patient with severe malabsorption requiring partially digested macronutrients?

Question 5 Diabetes management

Question 5: Diabetes management

According to ADA guidelines, what hemoglobin A1c value generally diagnoses diabetes mellitus?

Question 6 Cardiovascular nutrition

Question 6: Cardiovascular nutrition

Which dietary change is most effective for lowering LDL cholesterol?

Question 7 Body composition methods

Question 7: Body composition methods

Which body composition measurement is considered the gold standard reference method?

Question 8 Public health nutrition

Question 8: Public health nutrition

WIC vouchers in the U.S. primarily support which population?

Question 9 Inflammation and nutrition

Question 9: Inflammation and nutrition

C reactive protein (CRP) is most useful in nutrition assessment as an indicator of what?

Question 10 Bariatric nutrition

Question 10: Bariatric nutrition

After Roux en Y gastric bypass, patients are at particularly high risk of deficiency in which combination of nutrients?

Question 11 Behavior change

Question 11: Behavior change

Which stage of the Transtheoretical Model describes a client who is making active changes within the past 6 months?

Question 12 Oncology nutrition

Question 12: Oncology nutrition

Cachexia in cancer patients is best described as

Question 13 Food allergies

Question 13: Food allergies

Which IgE mediated food allergy in children most often resolves by adulthood?

Question 14 Fluid and electrolytes

Question 14: Fluid and electrolytes

Refeeding syndrome is most associated with rapid drops in which electrolytes?

Question 15 Counseling and ethics

Question 15: Counseling and ethics

Which is a primary ethical responsibility of an RDN during nutrition counseling?

Question 16 Lipid metabolism

Question 16: Lipid metabolism

Which lipoprotein is most responsible for transporting cholesterol from peripheral tissues back to the liver?

Question 17 Foodservice management

Question 17: Foodservice management

In foodservice operations, par stock is best defined as

Question 18 Research methods

Question 18: Research methods

A randomized controlled trial primarily controls for which threat to validity?

Question 19 Vitamin metabolism

Question 19: Vitamin metabolism

Conversion of homocysteine to methionine depends on which vitamins?

Question 20 Diet diabetes

Question 20: Diet diabetes

Which carbohydrate strategy best matches the meal plan goals for a person with type 1 diabetes using basal bolus insulin?

Question 1 of 20

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About this practice test

What this 2026-2027 Registered Dietitian Nutritionist (RDN) Practice Test covers

Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

Practice material can include variations on the same concept. It is not an official exam or a guarantee of a passing score. Confirm important facts against current authoritative sources.

Work through up to 50 CDR-style questions built around assessment, meal planning, and the wording patterns students usually miss on the first read.
Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Nutrition exam situations.
Review 3 real-world analogies, topic article cards, and source checks after each question so education and monitoring feel easier to recognize under pressure.
Build timing, confidence, and recall with scenario-based practice that feels closer to the real Registered Dietitian Nutritionist (RDN) than a generic flashcard dump.

Prepare for the Registered Dietitian Nutritionist (RDN) with realistic CDR practice questions, timed review, detailed rationales, and real-world analogies that make harder Nutrition concepts easier to remember.

This practice test is designed for students and professionals preparing for Registered Dietitian Nutritionist (RDN) who want stronger exam-day confidence, better explanation quality, and more useful answer review than a generic test bank.

Focus areas include assessment, meal planning, education, monitoring, along with scenario-based judgment, careful review of why distractors are less correct, and real-world analogies that help the key ideas stick.

What you will practice on this page

  • Work through up to 50 CDR-style questions built around assessment, meal planning, and the wording patterns students usually miss on the first read.
  • Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Nutrition exam situations.
  • Review 3 real-world analogies, topic article cards, and source checks after each question so education and monitoring feel easier to recognize under pressure.
  • Build timing, confidence, and recall with scenario-based practice that feels closer to the real Registered Dietitian Nutritionist (RDN) than a generic flashcard quiz.

How to use this exam to study smarter

  1. Start with the 20-question free sample to spot whether assessment or meal planning is slowing you down before you buy the full exam.
  2. After each block, review every rationale and the 3 real-world analogies, topic article cards, and source checks so the tested pattern behind education becomes easier to remember.
  3. Retake the full Registered Dietitian Nutritionist (RDN) practice test in timed mode and focus on cleaner decision-making, not just memorizing the last answer.

Students often land on this page after searching for terms like Registered Dietitian Nutritionist (RDN) practice test, Registered Dietitian Nutritionist (RDN) practice questions, Registered Dietitian Nutritionist (RDN) free practice test, Registered Dietitian Nutritionist (RDN) study guide, CDR Registered Dietitian Nutritionist (RDN) practice test, Registered Dietitian Nutritionist (RDN) assessment questions. That is why the free sample gives you 10 questions first and the full version goes deeper into the tested patterns.

Frequently asked questions

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Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

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Is this an official exam or a passing-score guarantee?

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