1. Principles of Nutrition
13% of the examIdentify weak areas and improve with focused review.
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Pass the Certified Nutrition Specialist exam with confidence.
Start with a free CNS practice test and build exam-ready confidence for the Certified Nutrition Specialist exam.
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Practice the CNS exam by domain
2. Nutritional Biochemistry
12% of the examIdentify weak areas and improve with focused review.
Start Practicing3. Nutrients & Human Health
13% of the examIdentify weak areas and improve with focused review.
Start Practicing4. Nutrition Assessment
13% of the examIdentify weak areas and improve with focused review.
Start Practicing5. Clinical Intervention & Monitoring
16% of the examIdentify weak areas and improve with focused review.
Start Practicing6. Medical Nutrition Therapy (MNT)
15% of the examIdentify weak areas and improve with focused review.
Start Practicing7. Public Health
12% of the examIdentify weak areas and improve with focused review.
Start Practicing8. Practice Management
6% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the CNS exam, the questions, pricing, the free trial, and how this fits your prep.
The CNS exam spans 8 domains - Principles of Nutrition (13%), Nutritional Biochemistry (12%), Nutrients & Human Health (13%), Nutrition Assessment (13%), Clinical Intervention & Monitoring (16%), Medical Nutrition Therapy (MNT) (15%), Public Health (12%), and Practice Management (6%). Every practice question maps to one of them, so you train on exactly what's tested.
The Certified Nutrition Specialist (CNS) exam has 200 questions and is completed in 4 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 CNS exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. CNS Exam Prep is an independent study resource for Certified Nutrition Specialist (CNS). 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 8 CNS domains - Principles of Nutrition (13%), Nutritional Biochemistry (12%), Nutrients & Human Health (13%), Nutrition Assessment (13%), Clinical Intervention & Monitoring (16%), Medical Nutrition Therapy (MNT) (15%), Public Health (12%), and Practice Management (6%). 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 Stripe, 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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Real feedback from CNS candidates on Reddit.
"took me way longer than planned bc i kept procrastinating but the practice questions on cns-practice-test.hub.invalid actually mirrored the real exam style. the clinical intervention stuff especially, that section is brutal and i felt way more ready after grinding those sets."
"honestly wasnt sure a website could actually help with something this dense but the mistake review feature saved me. i kept bombing the same nutrient metabolism questions over and over until i actually sat and read why i was wrong instead of just retaking blindly."
"passed last month. wasnt confident goin in, my assessment domain scores were rough for weeks. did full length mocks on the weekends and thats what turned it around, timing myself under real conditions made the actual test feel less scary."