CERTIFIED SPORTS NUTRITIONIST
EXAMINATION QUESTION AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
INSTANT DOWNLOAD PDF
1. What is the primary fuel source during high-intensity exercise?
A. Fat
B. Carbohydrate
C. Protein
D. Alcohol
Rationale: Carbohydrates are the most efficient source of energy during
high-intensity activities because they can be quickly metabolized.
2. The process by which glucose is stored in the liver and muscle is called:
A. Glycogenolysis
B. Glycogenesis
C. Gluconeogenesis
D. Lipogenesis
Rationale: Glycogenesis refers to the formation of glycogen from glucose
for storage.
3. Which vitamin is essential for calcium absorption?
A. Vitamin D
B. Vitamin C
C. Vitamin E
D. Vitamin K
Rationale: Vitamin D enhances intestinal absorption of calcium.
,4. The best indicator of long-term glycemic control is:
A. Fasting glucose
B. Hemoglobin A1c
C. Random glucose
D. Insulin level
Rationale: HbA1c reflects average blood glucose over 2–3 months.
5. During prolonged exercise, the body shifts to primarily using:
A. Creatine phosphate
B. Fat
C. Protein
D. Glucose
Rationale: With prolonged activity, fat becomes a major energy source
after carbohydrate stores are depleted.
6. Which mineral is most important for oxygen transport?
A. Calcium
B. Iron
C. Magnesium
D. Selenium
Rationale: Iron is a component of hemoglobin, essential for oxygen
transport.
7. The recommended protein intake for endurance athletes is:
A. 0.8 g/kg
B. 1.2–1.4 g/kg
C. 1.6–1.8 g/kg
D. 2.0 g/kg
Rationale: Endurance athletes require more than sedentary needs but less
than strength athletes.
8. The primary function of B vitamins in sports nutrition is:
A. Provide energy
B. Act as coenzymes in metabolism
C. Store glycogen
, D. Build muscle
Rationale: B vitamins assist enzymes in energy metabolism.
9. What is the main cause of exercise-induced dehydration?
A. Protein loss
B. Fluid loss through sweat
C. Fat oxidation
D. Glycogen depletion
Rationale: Sweating leads to significant fluid loss.
10.Which electrolyte is most lost in sweat?
A. Potassium
B. Sodium
C. Calcium
D. Phosphate
Rationale: Sodium is the primary electrolyte lost in sweat.
11.A high-glycemic carb source is useful:
A. Immediately after exercise
B. Before sleep
C. During rest
D. During low-intensity activity
Rationale: High-glycemic carbs help rapidly replenish glycogen
post-exercise.
12.What is the RDA for protein for a sedentary adult?
A. 0.5 g/kg
B. 0.8 g/kg
C. 1.0 g/kg
D. 1.2 g/kg
Rationale: 0.8 g/kg is the recommended amount for the general
population.
13.Creatine supplementation primarily enhances:
A. Endurance
EXAMINATION QUESTION AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
INSTANT DOWNLOAD PDF
1. What is the primary fuel source during high-intensity exercise?
A. Fat
B. Carbohydrate
C. Protein
D. Alcohol
Rationale: Carbohydrates are the most efficient source of energy during
high-intensity activities because they can be quickly metabolized.
2. The process by which glucose is stored in the liver and muscle is called:
A. Glycogenolysis
B. Glycogenesis
C. Gluconeogenesis
D. Lipogenesis
Rationale: Glycogenesis refers to the formation of glycogen from glucose
for storage.
3. Which vitamin is essential for calcium absorption?
A. Vitamin D
B. Vitamin C
C. Vitamin E
D. Vitamin K
Rationale: Vitamin D enhances intestinal absorption of calcium.
,4. The best indicator of long-term glycemic control is:
A. Fasting glucose
B. Hemoglobin A1c
C. Random glucose
D. Insulin level
Rationale: HbA1c reflects average blood glucose over 2–3 months.
5. During prolonged exercise, the body shifts to primarily using:
A. Creatine phosphate
B. Fat
C. Protein
D. Glucose
Rationale: With prolonged activity, fat becomes a major energy source
after carbohydrate stores are depleted.
6. Which mineral is most important for oxygen transport?
A. Calcium
B. Iron
C. Magnesium
D. Selenium
Rationale: Iron is a component of hemoglobin, essential for oxygen
transport.
7. The recommended protein intake for endurance athletes is:
A. 0.8 g/kg
B. 1.2–1.4 g/kg
C. 1.6–1.8 g/kg
D. 2.0 g/kg
Rationale: Endurance athletes require more than sedentary needs but less
than strength athletes.
8. The primary function of B vitamins in sports nutrition is:
A. Provide energy
B. Act as coenzymes in metabolism
C. Store glycogen
, D. Build muscle
Rationale: B vitamins assist enzymes in energy metabolism.
9. What is the main cause of exercise-induced dehydration?
A. Protein loss
B. Fluid loss through sweat
C. Fat oxidation
D. Glycogen depletion
Rationale: Sweating leads to significant fluid loss.
10.Which electrolyte is most lost in sweat?
A. Potassium
B. Sodium
C. Calcium
D. Phosphate
Rationale: Sodium is the primary electrolyte lost in sweat.
11.A high-glycemic carb source is useful:
A. Immediately after exercise
B. Before sleep
C. During rest
D. During low-intensity activity
Rationale: High-glycemic carbs help rapidly replenish glycogen
post-exercise.
12.What is the RDA for protein for a sedentary adult?
A. 0.5 g/kg
B. 0.8 g/kg
C. 1.0 g/kg
D. 1.2 g/kg
Rationale: 0.8 g/kg is the recommended amount for the general
population.
13.Creatine supplementation primarily enhances:
A. Endurance
