NASM CNC Exam Snapshot
Blueprint verified as of September 2026 — re-check every 6 months against NASM's official CNC pages
Format
100 MCQ, online
Time limit
90 minutes, open-book
Passing score
70%, up to 3 attempts
Prerequisites
None
Format, passing score and attempts are confirmed against NASM's own CNC product and curriculum pages, verified September 2026. NASM presents the course in four sections — Professional Practice, Nutrition Science, Behavior Change Strategies and Practical Nutrition Coaching — covering 24 chapters. Recertification is every two years. Pricing changes often with NASM's promotions and payment plans, so check the current price on nasm.org. Always confirm cost, format and policies directly with NASM before enrolling — this page is a study aid, not a substitute for NASM's official information.
Open-book doesn't mean easy. The CNC exam lets you refer back to the course — but you get 90 minutes for 100 questions. That's about 54 seconds per question, which leaves time to look up a handful of answers, not most of them. This course is built around that: every lesson ends with an "exam lookup tip," and the free Chapter Lookup Map shows you which chapter holds the facts you're most likely to need in a hurry.
One Lesson Per Chapter
Lesson 6 is Chapter 6. Every lesson maps one-to-one onto NASM's 24 chapters, grouped under its current four sections — so you can move between these notes and the official course without ever getting lost.
Built for a Timed, Open-Book Exam
Lookup tips in every lesson, a one-page Chapter Lookup Map, and a practice exam with the real 90-minute clock — so you practise finding answers at exam speed, not just reading about them.
Honest About What It Is (and Isn't)
This course doesn't certify you and isn't affiliated with NASM — no independent site can replace the real course. What it does is give you a thorough, free way to prepare for it.
By the end of this course, you'll have:
- A working understanding of all 24 CNC chapters, in the same order NASM teaches them.
- Chapter-by-chapter notes plus downloadable PDFs, slide decks and a cram sheet for each section.
- A knowledge-check quiz for every lesson, scored against NASM's real 70% passing bar.
- A full 100-question, 90-minute practice exam with a review-your-answers breakdown by section.
This course is built for you if...
- You've enrolled in NASM's CNC (or are about to) and want a free, structured way to study alongside it.
- You hold or are working toward a personal training certification and want to add nutrition coaching.
- You're deciding between NASM CNC and Precision Nutrition Level 1 and want to see the material first.
- You learn best from clear notes, practice questions and cram sheets rather than one long textbook.
NASM CNC vs Precision Nutrition Level 1
| NASM CNC | Precision Nutrition Level 1 | |
|---|---|---|
| Curriculum | 4 sections, 24 chapters | 3 units, 21 chapters |
| Main emphasis | Nutrition science, with behaviour change and practical coaching | Coaching methodology, with nutrition science |
| Exam format | One final exam: 100 questions, 90 minutes, open-book | Chapter exams: 10 questions each, untimed, open-book |
| Passing score | 70% | 75% cumulative across all chapters |
| Our free course | You're here | PN Level 1 Exam Prep → |
The Full 24-Chapter Syllabus
How to work through this course: the syllabus is grouped by NASM's four current sections, and lessons run in chapter order — Lesson 1 is Chapter 1, through to Lesson 24. Section percentages are FlexCult's estimate based on chapter coverage — NASM does not publish section weights for the CNC exam.
Free 1-page PDF · All 24 chapters
Grab the Chapter Lookup Map for open-book exam day →
Section 1 — Professional Practice
Chapters 1–3 · ~12% (est.)
01
Introduction
What a nutrition coach does, how the CNC exam works, and a strategy for a timed, open-book test.
~9 min read
→
02
Scope of Practice
What coaches can and can't do, professional boundaries, and when and how to refer clients.
~10 min read
→
03
Evidence-Based Nutrition and Practice
Types of evidence, how to judge a nutrition claim, and how to spot misinformation.
~10 min read
→
Section 2 — Nutrition Science
Chapters 4–13 · ~42% (est.)
04
Food Preferences and Influences
How culture, family, environment and social life shape what people choose to eat.
~9 min read
→
05
Energy Balance and Metabolism
Calories in and out, the parts of daily energy expenditure, and what really moves metabolism.
~12 min read
→
06
Protein
Amino acids, protein quality, how much people need, and the best food sources.
~11 min read
→
07
Carbohydrates
Sugars, starches and fibre, glycaemic concepts, and the roles carbohydrates play.
~11 min read
→
08
Fats
Saturated, unsaturated and trans fats, essential fatty acids, and what dietary fat does.
~10 min read
→
09
Alcohol
How the body processes alcohol, its calories, and how to coach clients who drink.
~8 min read
→
10
Micronutrients
Fat- and water-soluble vitamins, key minerals, and where to find them in food.
~12 min read
→
11
Hydration
Water balance, fluid needs, signs of dehydration, and the role of electrolytes.
~8 min read
→
12
Nutrient Timing
Eating around exercise, meal timing, protein distribution, and common timing myths.
~9 min read
→
13
Supplements
Evidence versus marketing, safety and third-party testing, and where a coach's role ends.
~10 min read
→
Section 3 — Behavior Change Strategies
Chapters 14–17 · ~17% (est.)
14
Psychology of Weight Control and Behavior Change
Why lasting change is hard, how habits form, and how readiness to change shifts over time.
~11 min read
→
15
Coaching and Communication
Building rapport, listening well, asking better questions, and giving useful feedback.
~9 min read
→
16
Motivational Interviewing
The core principles, exploring mixed feelings about change, and drawing out change talk.
~10 min read
→
17
Goal Setting
SMART goals, outcome versus process goals, and tracking and adjusting progress.
~8 min read
→
Section 4 — Practical Nutrition Coaching
Chapters 18–24 · ~29% (est.)
18
Dietary Assessment and Body Composition Testing
Food diaries and recalls, body-composition methods, and the limits of each.
~11 min read
→
19
Food and Supplement Labels and Portion Size
Reading labels, portions versus servings, and simple ways to estimate amounts without a scale.
~10 min read
→
20
Helping Clients Navigate the Real World
Grocery shopping, eating out, travel, social events and meal prep on a budget.
~9 min read
→
21
Navigating Diets
Popular eating approaches, their pros and cons, and how to evaluate a diet's claims.
~10 min read
→
22
Nutrition Hot Topics and Controversies
Sweeteners, gluten, organic food, detoxes and other debates — and how to talk about them with clients.
~11 min read
→
23
Managing Weight Loss Plateaus and Maintaining Weight Loss
Why progress stalls, sensible adjustments, and the habits that help results last.
~9 min read
→
24
Programming — Putting It All Together
A worked client example, from first assessment to goals, plan, follow-up and adjustments.
~12 min read
→
This syllabus follows NASM's current four-section presentation of the CNC course and its 24-chapter curriculum. Already studying for a personal training exam? Our NASM-CPT and ACE-CPT courses are free too, with full mock exams.
🏆 Ready to Test Yourself?
100 questions · 90-minute timer · open-notes · 70% pass threshold
Once you've worked through all 24 lessons, take the practice exam under real conditions — keep your notes and the Chapter Lookup Map open, and beat the clock. Score 70%+ to unlock a free FlexCult completion certificate.
Take the Practice Exam →Independent study resource. The Flex Cult is not affiliated with, endorsed by, or acting on behalf of the National Academy of Sports Medicine (NASM). "NASM," "NASM-CNC," and "Certified Nutrition Coach" are trademarks of their respective owners. This course is free, original exam-prep content based on NASM's publicly described CNC curriculum — it does not issue an official certification. To earn the NASM Certified Nutrition Coach credential, purchase the course and register for the exam directly through NASM.
General education only — not medical or dietary advice. Nothing here is intended to diagnose, treat or prevent any medical condition. Rules on who may give nutrition advice vary by country and region; check the requirements where you live and work, and consult a doctor or registered dietitian for individual health needs.
Frequently Asked Questions
Will this course certify me as a NASM Certified Nutrition Coach?
No. This is a free, independent study resource — it does not issue NASM's credential. To become a NASM Certified Nutrition Coach, you purchase the course and pass the exam directly through NASM.
Is this affiliated with NASM?
No. The Flex Cult is not affiliated with, endorsed by, or acting on behalf of the National Academy of Sports Medicine (NASM). "NASM," "NASM-CNC," and "Certified Nutrition Coach" are trademarks of their respective owners.
Is the NASM CNC exam open-book?
Yes. NASM allows you to refer back to the course material during the exam. But it is also timed — 100 questions in 90 minutes, or about 54 seconds per question — so you only have time to look up a handful of answers. Knowing the material, and knowing exactly where to find the rest, is what gets you through.
How is the CNC different from the nutrition chapter in NASM-CPT?
NASM-CPT covers nutrition and supplements in a couple of chapters as part of a personal training certification. The CNC is a full 24-chapter course dedicated to nutrition science, behaviour change and practical nutrition coaching.
Should I choose NASM CNC or Precision Nutrition Level 1?
Both are respected nutrition coaching programs. The CNC puts more weight on nutrition science and uses a single timed, open-book final exam. Precision Nutrition Level 1 leans further into coaching methodology and uses untimed, open-book chapter exams. Many coaches pick based on which emphasis fits them — we have a free study course for each.
Is the NASM CNC accredited?
NASM describes the CNC as a certificate program that is not accredited by a third-party accrediting organization. Check nasm.org for its current status.
Can I give nutrition advice after earning the CNC?
It depends on where you live and work. In many countries and regions, titles like "dietitian" or "nutritionist" and giving nutrition advice to treat medical conditions are regulated. Always check the rules where you practise, stay within a coach's scope, and refer clients with medical conditions to a doctor or registered dietitian.
Are the practice questions real NASM exam questions?
No. Every practice question in this course was written originally by The Flex Cult, based on NASM's publicly described CNC curriculum — not copied or leaked from the real exam.
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Also free: NASM-CPT, ACE-CPT, Precision Nutrition Level 1 and NBHWC exam prep.