NASM CSNC study guide
NASM CSNC · Work through your exam, one topic at a time.
The Certified Nutrition Coach (CNC) is one of the credentials NASM lists among its "Level Up Your Credentials" courses and describes as its "2ND MOST POPULAR COURSE." It is a nutrition-coaching credential rather than a dietetics license, so it is aimed at personal trainers, group instructors, wellness staff, and health-minded professionals who want to add structured nutrition coaching and habit-based behavior change to the services they already offer clients. It also suits candidates who hold a NASM-CPT and want to broaden client support: NASM publishes a testimonial from a professional who added the CNC on top of the CPT "in order to help my clients achieve their goals in a broader way." Expect the exam to test four areas in roughly equal measure: nutrition science foundations, behavior change and coaching psychology, client assessment and program design, and professional practice, scope of practice, and ethics. The NASM CSNC study guide has 5 sections and about 1,579 words.
01Nutrition Science Foundations
Nutrition Science Foundations checks whether you can explain energy balance, macronutrient roles and dosing, micronutrient and fiber needs, digestion and absorption, hydration, nutrient timing, and supplement risk at the sports-nutrition-coach level. You apply science; you do not diagnose or prescribe therapeutic diets.
335 words, about 2 min02Behavior Change and Coaching Psychology
Behavior Change and Coaching Psychology tests your ability to move a client from intention to sustained action using evidence-based coaching: stages of change, motivational interviewing, self-determination theory, goal setting, self-monitoring, and relapse prevention. The exam favors collaboration over instruction.
297 words, about 1 min03Client Assessment and Program Design
Client Assessment and Program Design tests intake and screening, dietary assessment, body-composition and readiness measures, energy-need estimation, macronutrient prescription, nutrition periodization around training, and progress monitoring. The exam expects safe, individualized decisions-not template diets.
332 words, about 2 min04Professional Practice
Professional Practice covers documentation, communication, referral, record security, business conduct, and interprofessional collaboration. The exam tests whether you operate like a professional whose work can be reviewed, defended, and coordinated with other providers.
297 words, about 1 min05Scope of Practice and Ethics
Scope of Practice and Ethics tests boundary recognition: what a sports nutrition coach may do, when to refer, and how to handle conflicts, consent, confidentiality, and supplement claims. The central distinction is general nutrition coaching versus medical nutrition therapy.
318 words, about 2 min