ISSA Nutrition Quiz Exam 2025/2026 |
International Sports Sciences Association
Nutrition Specialist Quiz with Newest
Questions & Verified Answers | A+ Rated
ISSA Nutrition Specialist Practice
Questions – (1 to 200)
1. Which macronutrient is primarily responsible for
building and repairing body tissues?
A. Carbohydrates
B. Protein
C. Fat
D. Vitamins
Answer: B – Proteins supply amino acids needed for tissue growth and repair.
2. Which vitamin is fat-soluble?
A. Vitamin C
B. Vitamin B6
C. Vitamin D
D. Vitamin B12
Answer: C – Vitamins A, D, E, and K are fat-soluble.
3. The primary function of carbohydrates is to:
A. Build muscle
B. Provide energy
C. Maintain fluid balance
,D. Support enzyme activity
Answer: B – Carbs are the body’s main energy source.
4. Which mineral is essential for oxygen transport in the
blood?
A. Zinc
B. Sodium
C. Iron
D. Iodine
Answer: C – Iron is part of hemoglobin.
5. Daily water intake is influenced most by:
A. Body size
B. Height
C. Mood
D. Hair thickness
Answer: A – Hydration needs scale with body size and activity.
6. Which nutrient has the highest caloric density per
gram?
A. Carbohydrates
B. Protein
C. Fat
D. Water
Answer: C – Fat provides ~9 kcal/g, more than carbs or protein.
7. A complete protein contains:
A. All essential amino acids
B. No amino acids
C. Only branched-chain amino acids
D. Only plant-based compounds
Answer: A – Complete proteins supply all essential amino acids.
8. Fiber is best known for:
, A. Providing energy
B. Supporting digestive health
C. Reducing hydration
D. Raising blood glucose
Answer: B – Fiber promotes regular digestion and gut health.
9. A client trying to improve heart health should increase:
A. Trans fats
B. Saturated fats
C. Unsaturated fats
D. Alcohol intake
Answer: C – Unsaturated fats (like olive oil) support heart function.
10. Glycogen is stored mainly in the:
A. Pancreas
B. Liver and muscles
C. Kidneys
D. Stomach
Answer: B – Glycogen is a storage form of glucose in liver and muscle.
11. Which nutrient helps regulate fluid balance and nerve
function?
A. Sodium
B. Vitamin C
C. Carbohydrate
D. Protein
Answer: A – Sodium is key for fluid balance and nerve signaling.
12. Which fatty acid is considered essential because the
body cannot produce it?
A. Oleic acid
B. Linoleic acid
C. Palmitic acid
D. Stearic acid
Answer: B – Linoleic acid (omega-6) must come from diet.
International Sports Sciences Association
Nutrition Specialist Quiz with Newest
Questions & Verified Answers | A+ Rated
ISSA Nutrition Specialist Practice
Questions – (1 to 200)
1. Which macronutrient is primarily responsible for
building and repairing body tissues?
A. Carbohydrates
B. Protein
C. Fat
D. Vitamins
Answer: B – Proteins supply amino acids needed for tissue growth and repair.
2. Which vitamin is fat-soluble?
A. Vitamin C
B. Vitamin B6
C. Vitamin D
D. Vitamin B12
Answer: C – Vitamins A, D, E, and K are fat-soluble.
3. The primary function of carbohydrates is to:
A. Build muscle
B. Provide energy
C. Maintain fluid balance
,D. Support enzyme activity
Answer: B – Carbs are the body’s main energy source.
4. Which mineral is essential for oxygen transport in the
blood?
A. Zinc
B. Sodium
C. Iron
D. Iodine
Answer: C – Iron is part of hemoglobin.
5. Daily water intake is influenced most by:
A. Body size
B. Height
C. Mood
D. Hair thickness
Answer: A – Hydration needs scale with body size and activity.
6. Which nutrient has the highest caloric density per
gram?
A. Carbohydrates
B. Protein
C. Fat
D. Water
Answer: C – Fat provides ~9 kcal/g, more than carbs or protein.
7. A complete protein contains:
A. All essential amino acids
B. No amino acids
C. Only branched-chain amino acids
D. Only plant-based compounds
Answer: A – Complete proteins supply all essential amino acids.
8. Fiber is best known for:
, A. Providing energy
B. Supporting digestive health
C. Reducing hydration
D. Raising blood glucose
Answer: B – Fiber promotes regular digestion and gut health.
9. A client trying to improve heart health should increase:
A. Trans fats
B. Saturated fats
C. Unsaturated fats
D. Alcohol intake
Answer: C – Unsaturated fats (like olive oil) support heart function.
10. Glycogen is stored mainly in the:
A. Pancreas
B. Liver and muscles
C. Kidneys
D. Stomach
Answer: B – Glycogen is a storage form of glucose in liver and muscle.
11. Which nutrient helps regulate fluid balance and nerve
function?
A. Sodium
B. Vitamin C
C. Carbohydrate
D. Protein
Answer: A – Sodium is key for fluid balance and nerve signaling.
12. Which fatty acid is considered essential because the
body cannot produce it?
A. Oleic acid
B. Linoleic acid
C. Palmitic acid
D. Stearic acid
Answer: B – Linoleic acid (omega-6) must come from diet.
