1. Which of the following foods is high in omega-3 fatty acids?
A. Apples
B. Salmon
C. Rice
D. Chicken
Answer: B. Salmon
Rationale: Omega-3 fatty acids, found in fatty fish like salmon,
support heart health and reduce inflammation.
2. What is the role of magnesium in the body?
A. Builds muscle
B. Supports enzyme function
C. Provides energy
D. Increases iron absorption
Answer: B. Supports enzyme function
Rationale: Magnesium is a cofactor for hundreds of enzymes
involved in energy production, DNA synthesis, and muscle function.
3. Which condition is most commonly associated with vitamin
A. deficiency?
A. Night blindness
B. Osteoporosis
C. Anemia
D. Diabetes
Answer: A. Night blindness
Rationale: Vitamin A is essential for vision, particularly in low-light
conditions; its deficiency can lead to night blindness.
4. Which vitamin deficiency causes scurvy?
A. Vitamin B12
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
Rationale: Vitamin C is essential for collagen synthesis; its
deficiency leads to symptoms like bleeding gums and weakness,
characteristic of scurvy.
, 5. Which nutrient is most important for muscle contraction?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
Answer: C. Calcium
Rationale: Calcium plays a key role in muscle contraction by
enabling the interaction between actin and myosin filaments in
muscle cells.
6. What is the term for foods that contain added nutrients?
A. Whole foods
B. Fortified foods
C. Organic foods
D. Processed foods
Answer: B. Fortified foods
Rationale: Fortified foods have additional nutrients added, such as
vitamin D in milk or iodine in salt, to prevent deficiencies.
7. What does the glycemic index (GI) measure?
A. Nutrient density of foods
B. Impact of food on blood sugar levels
C. Calorie content of foods
D. Fiber content of foods
Answer: B. Impact of food on blood sugar levels
Rationale: GI indicates how quickly a food raises blood glucose
levels, helping individuals manage blood sugar.
8. What is the primary function of insulin in the body?
A. Increase blood sugar levels
B. Store glycogen in muscles
C. Lower blood sugar levels
D. Convert fat to energy
Answer: C. Lower blood sugar levels
Rationale: Insulin helps cells absorb glucose from the blood for
energy or storage, reducing blood sugar levels.
9. Which food is a rich source of vitamin K?
A. Apples
B. Salmon
C. Rice
D. Chicken
Answer: B. Salmon
Rationale: Omega-3 fatty acids, found in fatty fish like salmon,
support heart health and reduce inflammation.
2. What is the role of magnesium in the body?
A. Builds muscle
B. Supports enzyme function
C. Provides energy
D. Increases iron absorption
Answer: B. Supports enzyme function
Rationale: Magnesium is a cofactor for hundreds of enzymes
involved in energy production, DNA synthesis, and muscle function.
3. Which condition is most commonly associated with vitamin
A. deficiency?
A. Night blindness
B. Osteoporosis
C. Anemia
D. Diabetes
Answer: A. Night blindness
Rationale: Vitamin A is essential for vision, particularly in low-light
conditions; its deficiency can lead to night blindness.
4. Which vitamin deficiency causes scurvy?
A. Vitamin B12
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
Rationale: Vitamin C is essential for collagen synthesis; its
deficiency leads to symptoms like bleeding gums and weakness,
characteristic of scurvy.
, 5. Which nutrient is most important for muscle contraction?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
Answer: C. Calcium
Rationale: Calcium plays a key role in muscle contraction by
enabling the interaction between actin and myosin filaments in
muscle cells.
6. What is the term for foods that contain added nutrients?
A. Whole foods
B. Fortified foods
C. Organic foods
D. Processed foods
Answer: B. Fortified foods
Rationale: Fortified foods have additional nutrients added, such as
vitamin D in milk or iodine in salt, to prevent deficiencies.
7. What does the glycemic index (GI) measure?
A. Nutrient density of foods
B. Impact of food on blood sugar levels
C. Calorie content of foods
D. Fiber content of foods
Answer: B. Impact of food on blood sugar levels
Rationale: GI indicates how quickly a food raises blood glucose
levels, helping individuals manage blood sugar.
8. What is the primary function of insulin in the body?
A. Increase blood sugar levels
B. Store glycogen in muscles
C. Lower blood sugar levels
D. Convert fat to energy
Answer: C. Lower blood sugar levels
Rationale: Insulin helps cells absorb glucose from the blood for
energy or storage, reducing blood sugar levels.
9. Which food is a rich source of vitamin K?
