Fitness Lessons Nutrition for Fitness 1 — Questions and Answers
Question 1: Which macronutrient is the primary fuel source for high-intensity exercise?
- Carbohydrates (Correct answer)
- Fat
- Protein
- Fiber
Correct answer: Carbohydrates
Carbohydrates, stored as muscle glycogen, are the preferred fuel for high-intensity exercise due to their rapid availability.
Question 2: What is the recommended daily protein intake for strength athletes per pound of body weight?
- 0.7–1.0 grams per pound (Correct answer)
- 0.1–0.2 grams per pound
- 2.5–3.0 grams per pound
- 0.3–0.5 grams per pound
Correct answer: 0.7–1.0 grams per pound
Most sports nutrition guidelines recommend 0.7–1.0 grams of protein per pound of body weight daily for strength and power athletes.
Question 3: What does the term 'caloric surplus' mean?
- Consuming more calories than the body expends (Correct answer)
- Burning more calories than consumed
- Eating exactly maintenance calories
- Consuming only protein
Correct answer: Consuming more calories than the body expends
A caloric surplus occurs when calorie intake exceeds total daily energy expenditure, often used intentionally to support muscle growth.
Question 4: What is glycogen?
- The storage form of carbohydrates in muscles and liver (Correct answer)
- A type of dietary fat
- A hormone that regulates blood sugar
- A form of stored protein
Correct answer: The storage form of carbohydrates in muscles and liver
Glycogen is the polysaccharide form in which carbohydrates are stored in the liver and muscles for quick energy access.
Question 5: Which of the following is considered a complete protein?
- Chicken breast (Correct answer)
- Brown rice
- Almonds
- Black beans
Correct answer: Chicken breast
Chicken breast contains all nine essential amino acids in adequate amounts, making it a complete protein source.
Question 6: What is the function of dietary fat in fitness and health?
- Supports hormone production, fat-soluble vitamin absorption, and energy storage (Correct answer)
- Only provides energy during exercise
- Builds muscle mass directly
- Increases muscle contraction speed
Correct answer: Supports hormone production, fat-soluble vitamin absorption, and energy storage
Dietary fats support testosterone production, absorb fat-soluble vitamins (A, D, E, K), and serve as a dense energy source.
Fitness Lessons Nutrition for Fitness 1
Which macronutrient is the primary fuel source for high-intensity exercise?