CNC Study Guide 2026
Everything you need to pass the CNC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📚 CNC Topics to Study (21)
✍️ Sample CNC Questions & Answers
1. According to the Dietary Guidelines for Americans, what is the recommended daily fiber intake for adult women under age 50?
The Dietary Guidelines for Americans recommend 25 grams of fiber per day for adult women under 50 and 38 grams for adult men under 50.
2. Which organ is responsible for producing bile, which aids in the digestion of dietary fats?
The liver produces bile, which is then stored in the gallbladder and released into the small intestine to emulsify dietary fats for digestion.
3. Increased intestinal permeability, sometimes referred to as 'leaky gut,' is characterized by which of the following?
Leaky gut occurs when tight junctions between intestinal epithelial cells become compromised, allowing bacteria, toxins, and undigested particles to pass into the bloodstream.
4. Which of the following best describes a key competency required for communication & interprofessional collaboration in CNC certification?
Critical thinking and evidence-based decision making is essential for communication & interprofessional collaboration, as professionals must analyze situations and apply knowledge appropriately.
5. A client following a 1,500 kcal/day plan loses weight for 8 weeks then plateaus. The MOST appropriate first intervention is to:
Before adjusting the plan, a nutrition coach should verify adherence and recalculate TDEE based on the client's new (lower) body weight, as energy needs decrease with weight loss.
6. Which vitamin is known for its antioxidant properties?
Vitamin C is a powerful antioxidant that helps protect the body's cells from damage caused by free radicals, which are unstable molecules that can contribute to chronic diseases and aging. By neutralizing these free radicals, Vitamin C supports overall cellular health, boosts the immune system, and aids in collagen production.