1. Principles of Dietetics
25% of the examIdentify weak areas and improve with focused review.
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Free RD Practice Test
Pass the Registered Dietitian exam with confidence.
Start with a free RD practice test and build exam-ready confidence for the Registered Dietitian exam.
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Everything your RD certification prep needs
Practice expert-vetted questions, find your weak domains, and turn every mistake into a focused review plan.
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Practice the RD exam by domain
2. Nutrition Care for Individuals and Groups
40% of the examIdentify weak areas and improve with focused review.
Start Practicing3. Management of Food and Nutrition Programs and Services
21% of the examIdentify weak areas and improve with focused review.
Start Practicing4. Foodservice Systems
14% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the RD exam, the questions, pricing, the free trial, and how this fits your prep.
The RD exam spans 4 domains - Principles of Dietetics (25%), Nutrition Care for Individuals and Groups (40%), Management of Food and Nutrition Programs and Services (21%), and Foodservice Systems (14%). Every practice question maps to one of them, so you train on exactly what's tested.
The Registered Dietitian (RD) exam has 125 questions and is completed in 3 hours. Our timed practice tests mirror that length and pacing, so exam day feels familiar.
No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the RD exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. RD Exam Prep is an independent study resource for Registered Dietitian (RD). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.
Every paid plan unlocks the full bank of 1,000+ practice questions covering all 4 RD domains - Principles of Dietetics (25%), Nutrition Care for Individuals and Groups (40%), Management of Food and Nutrition Programs and Services (21%), and Foodservice Systems (14%). You can practice the whole bank, filter by domain, or run a timed, domain-balanced exam simulation.
Yes - the bank is maintained against the current exam outline, and questions are revised when the exam changes.
No honest practice platform can guarantee a pass. What realistic practice does is show you - before exam day - exactly which domains are weak, and give you the repetitions to fix them. That's the difference between hoping you're ready and knowing where you stand.
Yes. You get 10 free sample questions with instant feedback - no credit card and no account required.
The free sample shows you the question quality. Paid plans unlock the full 1,000+ question bank, exam-style practice modes, mistake review, and - on Fast Track and Pass Confidence - progress analytics that show your readiness by domain.
No. Every plan is a single one-time payment for a fixed access window - 48 hours, 7 days, or 6 weeks. There is no auto-renewal and no recurring billing.
Match it to your exam date: Final Review (2 days) for an exam in the next day or two, Fast Track (7 days) for an exam this week, Pass Confidence (6 weeks) for a structured run-up.
For most countries, the price you see is exactly what you pay - tax is already included. Where local law requires it to be added separately, it's shown clearly at checkout before you pay, so there are never any surprise fees.
Access is instant after payment and runs for your plan's full window from that moment. When the window ends, your local progress stays on your device - you can buy another window any time and pick up where you left off.
Yes - the whole platform is mobile-first: practice, mistake review, and analytics all work on any phone, tablet, or laptop with a browser. Nothing to install.
Every answer feeds your per-domain accuracy, readiness score, and weak-area list. Instead of re-reading everything, you drill the domains that are actually costing you points - that's what moves a score in days, not months.
Chat with us any time - the 24/7 support chat in the corner of every page gives instant answers about plans, access, and billing. Prefer email? The contact link is in the footer. Payments are processed securely by Polar, and active customers can download an invoice from their profile page.
Make sure you're signed in with the same email you used at checkout - access activates within a minute of payment. If it still doesn't appear, email us from the contact link in the footer and it'll be sorted out.
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Trusted by RD candidates
Real feedback from RD candidates on Reddit.
"passed last week. wasnt sure this site would be worth it but the practice questions for nutrition care stuff were pretty much exactly the vibe of the real exam. not identical obviously but the reasoning clicked. just glad its over."
"ngl i put off studying way longer than i should have and was genuinely panicking two weeks out. i found dietitiantest.com kind of randomly and basically lived in the mistake review feature. seeing which nutrition care questions i kept getting wrong and why was more useful than re-reading my notes for the hundredth time."
"the foodservice systems questions on here were alot more detailed than i expected, which helped because that domain always felt like an afterthought in my program. it filled in the gaps. solid prep, definately worth the time i put in."