Crossfit Nutrition Principles for Fitness 2 — Questions and Answers
Question 1: According to CrossFit nutrition guidelines, what is the recommended macronutrient ratio by caloric percentage?
- 40% carbs, 30% protein, 30% fat (Correct answer)
- 50% carbs, 25% protein, 25% fat
- 30% carbs, 40% protein, 30% fat
- 60% carbs, 20% protein, 20% fat
Correct answer: 40% carbs, 30% protein, 30% fat
CrossFit recommends a Zone Diet-inspired ratio of approximately 40% carbohydrates, 30% protein, and 30% fat by caloric intake.
Question 2: Which of the following best describes 'glycemic index' in the context of CrossFit nutrition?
- The total grams of carbohydrates in a food
- A measure of how quickly a food raises blood glucose levels (Correct answer)
- The ratio of sugar to fiber in a food item
- The insulin response per gram of protein consumed
Correct answer: A measure of how quickly a food raises blood glucose levels
Glycemic index measures how quickly carbohydrate-containing foods raise blood glucose levels compared to pure glucose.
Question 3: A CrossFit athlete finishes an intense WOD. What is the PRIMARY reason to consume protein within 30-60 minutes post-workout?
- To immediately restore glycogen stores
- To stimulate muscle protein synthesis during the anabolic window (Correct answer)
- To lower cortisol levels faster than carbohydrates alone
- To replenish electrolytes lost through sweat
Correct answer: To stimulate muscle protein synthesis during the anabolic window
Post-workout protein consumption stimulates muscle protein synthesis during the heightened anabolic window following intense exercise.
Question 4: In CrossFit's nutrition hierarchy, which dietary approach is considered the foundational baseline?
- Ketogenic diet
- Paleo diet
- Eat meat, vegetables, nuts, seeds, some fruit, little starch, no sugar (Correct answer)
- Intermittent fasting protocol
Correct answer: Eat meat, vegetables, nuts, seeds, some fruit, little starch, no sugar
CrossFit's foundational nutrition prescription is to eat meat, vegetables, nuts, seeds, some fruit, little starch, and no sugar.
Question 5: How does chronic sleep deprivation most directly affect an athlete's nutritional needs and body composition?
- It decreases appetite and reduces caloric needs
- It elevates ghrelin and suppresses leptin, increasing hunger and fat storage (Correct answer)
- It accelerates protein synthesis independent of training
- It has no measurable effect on macronutrient utilization
Correct answer: It elevates ghrelin and suppresses leptin, increasing hunger and fat storage
Sleep deprivation elevates hunger hormone ghrelin and suppresses satiety hormone leptin, driving overeating and promoting fat storage.
Question 6: Which statement about dietary fat is most accurate in the context of CrossFit performance?
- Fat should be minimized to below 10% of calories for optimal performance
- Dietary fat is essential for hormone production and fat-soluble vitamin absorption (Correct answer)
- Saturated fat directly impairs VO2 max and should be avoided entirely
- Fat consumption post-workout inhibits muscle protein synthesis
Correct answer: Dietary fat is essential for hormone production and fat-soluble vitamin absorption
Dietary fat is essential for producing steroid hormones and absorbing fat-soluble vitamins A, D, E, and K, making it indispensable for health and performance.
Question 7: An athlete reports feeling dizzy and weak during afternoon WODs despite eating breakfast. Which nutritional strategy should a CrossFit trainer suggest first?
- Increase pre-workout caffeine intake
- Add a balanced snack 60-90 minutes before training (Correct answer)
- Switch entirely to a fat-adapted ketogenic diet
- Reduce water intake to improve electrolyte concentration
Correct answer: Add a balanced snack 60-90 minutes before training
A balanced snack 60-90 minutes before training can stabilize blood sugar and provide available fuel to prevent mid-workout energy crashes.
Crossfit Nutrition Principles for Fitness 2
According to CrossFit nutrition guidelines, what is the recommended macronutrient ratio by caloric percentage?