DHN 101 Exam 1 Comprehensive Review Newest
2025 – 2026 Updated Questions From Actual
Exams Complete 150 Questions And Correct
Detailed Answers (Verified Answers) |Already
Graded A+||Brand New!!
1. Which nutrient provides the primary source of energy for the body during moderate
activity
A. Protein
B. Carbohydrates
C. Vitamins
D. Minerals
✔ Correct Answer: B. Carbohydrates
Explanation: Carbohydrates are the body’s preferred and most efficient energy
source, especially for brain function and physical activity.
2. A patient presents with fatigue and pale skin. Which deficiency is most likely
A. Vitamin C
B. Iron
C. Calcium
D. Vitamin D
✔ Correct Answer: B. Iron
Explanation: Iron deficiency leads to anemia, characterized by fatigue and pallor
due to reduced oxygen transport.
3. Which macronutrient is primarily responsible for tissue repair and growth
A. Fats
B. Carbohydrates
C. Protein
D. Water
✔ Correct Answer: C. Protein
Explanation: Proteins provide amino acids necessary for building and repairing
body tissues.
4. In a balanced diet, which food group should be consumed in the largest quantity
A. Proteins
B. Fruits
C. Grains
D. Fats
✔ Correct Answer: C. Grains
Explanation: Dietary guidelines recommend grains, especially whole grains, as the
foundation of daily intake.
5. Which vitamin is fat-soluble
A. Vitamin B12
B. Vitamin C
, C. Vitamin D
D. Vitamin B6
✔ Correct Answer: C. Vitamin D
Explanation: Vitamin D is stored in body fat and absorbed along with dietary fats.
6. A deficiency in vitamin C leads to which condition
A. Rickets
B. Scurvy
C. Anemia
D. Osteoporosis
✔ Correct Answer: B. Scurvy
Explanation: Vitamin C deficiency impairs collagen synthesis, causing scurvy.
7. Which mineral is essential for bone health
A. Iron
B. Sodium
C. Calcium
D. Potassium
✔ Correct Answer: C. Calcium
Explanation: Calcium is critical for bone structure and maintenance.
8. What is the primary function of dietary fats
A. Immediate energy
B. Tissue repair
C. Long-term energy storage
D. Oxygen transport
✔ Correct Answer: C. Long-term energy storage
Explanation: Fats provide concentrated energy and serve as long-term energy
reserves.
9. Which nutrient helps regulate body processes without providing energy
A. Carbohydrates
B. Proteins
C. Vitamins
D. Fats
✔ Correct Answer: C. Vitamins
Explanation: Vitamins act as regulators in metabolic processes but do not supply
calories.
10. Which organ is primarily responsible for nutrient absorption
A. Stomach
B. Small intestine
C. Liver
D. Pancreas
✔ Correct Answer: B. Small intestine
Explanation: Most digestion and nutrient absorption occur in the small intestine.
11. A client following a vegan diet must monitor intake of which nutrient most carefully
A. Vitamin C
B. Fiber
C. Vitamin B12
D. Potassium
, ✔ Correct Answer: C. Vitamin B12
Explanation: Vitamin B12 is primarily found in animal products and is often
lacking in vegan diets.
12. Which type of fat is considered heart-healthy
A. Trans fat
B. Saturated fat
C. Unsaturated fat
D. Hydrogenated fat
✔ Correct Answer: C. Unsaturated fat
Explanation: Unsaturated fats improve cholesterol levels and reduce heart disease
risk.
13. What is the main function of water in the body
A. Energy storage
B. Temperature regulation
C. Hormone production
D. Bone formation
✔ Correct Answer: B. Temperature regulation
Explanation: Water helps maintain body temperature and supports metabolic
processes.
14. Which nutrient yields 9 calories per gram
A. Protein
B. Carbohydrates
C. Fat
D. Fiber
✔ Correct Answer: C. Fat
Explanation: Fat is the most energy-dense macronutrient.
15. Which condition is associated with excessive sodium intake
A. Hypotension
B. Hypertension
C. Anemia
D. Osteoporosis
✔ Correct Answer: B. Hypertension
Explanation: High sodium intake increases blood pressure.
16. A deficiency in vitamin D during childhood leads to
A. Scurvy
B. Rickets
C. Beriberi
D. Pellagra
✔ Correct Answer: B. Rickets
Explanation: Vitamin D deficiency affects bone mineralization in children.
17. Which nutrient is essential for oxygen transport in blood
A. Calcium
B. Iron
C. Zinc
D. Magnesium
2025 – 2026 Updated Questions From Actual
Exams Complete 150 Questions And Correct
Detailed Answers (Verified Answers) |Already
Graded A+||Brand New!!
1. Which nutrient provides the primary source of energy for the body during moderate
activity
A. Protein
B. Carbohydrates
C. Vitamins
D. Minerals
✔ Correct Answer: B. Carbohydrates
Explanation: Carbohydrates are the body’s preferred and most efficient energy
source, especially for brain function and physical activity.
2. A patient presents with fatigue and pale skin. Which deficiency is most likely
A. Vitamin C
B. Iron
C. Calcium
D. Vitamin D
✔ Correct Answer: B. Iron
Explanation: Iron deficiency leads to anemia, characterized by fatigue and pallor
due to reduced oxygen transport.
3. Which macronutrient is primarily responsible for tissue repair and growth
A. Fats
B. Carbohydrates
C. Protein
D. Water
✔ Correct Answer: C. Protein
Explanation: Proteins provide amino acids necessary for building and repairing
body tissues.
4. In a balanced diet, which food group should be consumed in the largest quantity
A. Proteins
B. Fruits
C. Grains
D. Fats
✔ Correct Answer: C. Grains
Explanation: Dietary guidelines recommend grains, especially whole grains, as the
foundation of daily intake.
5. Which vitamin is fat-soluble
A. Vitamin B12
B. Vitamin C
, C. Vitamin D
D. Vitamin B6
✔ Correct Answer: C. Vitamin D
Explanation: Vitamin D is stored in body fat and absorbed along with dietary fats.
6. A deficiency in vitamin C leads to which condition
A. Rickets
B. Scurvy
C. Anemia
D. Osteoporosis
✔ Correct Answer: B. Scurvy
Explanation: Vitamin C deficiency impairs collagen synthesis, causing scurvy.
7. Which mineral is essential for bone health
A. Iron
B. Sodium
C. Calcium
D. Potassium
✔ Correct Answer: C. Calcium
Explanation: Calcium is critical for bone structure and maintenance.
8. What is the primary function of dietary fats
A. Immediate energy
B. Tissue repair
C. Long-term energy storage
D. Oxygen transport
✔ Correct Answer: C. Long-term energy storage
Explanation: Fats provide concentrated energy and serve as long-term energy
reserves.
9. Which nutrient helps regulate body processes without providing energy
A. Carbohydrates
B. Proteins
C. Vitamins
D. Fats
✔ Correct Answer: C. Vitamins
Explanation: Vitamins act as regulators in metabolic processes but do not supply
calories.
10. Which organ is primarily responsible for nutrient absorption
A. Stomach
B. Small intestine
C. Liver
D. Pancreas
✔ Correct Answer: B. Small intestine
Explanation: Most digestion and nutrient absorption occur in the small intestine.
11. A client following a vegan diet must monitor intake of which nutrient most carefully
A. Vitamin C
B. Fiber
C. Vitamin B12
D. Potassium
, ✔ Correct Answer: C. Vitamin B12
Explanation: Vitamin B12 is primarily found in animal products and is often
lacking in vegan diets.
12. Which type of fat is considered heart-healthy
A. Trans fat
B. Saturated fat
C. Unsaturated fat
D. Hydrogenated fat
✔ Correct Answer: C. Unsaturated fat
Explanation: Unsaturated fats improve cholesterol levels and reduce heart disease
risk.
13. What is the main function of water in the body
A. Energy storage
B. Temperature regulation
C. Hormone production
D. Bone formation
✔ Correct Answer: B. Temperature regulation
Explanation: Water helps maintain body temperature and supports metabolic
processes.
14. Which nutrient yields 9 calories per gram
A. Protein
B. Carbohydrates
C. Fat
D. Fiber
✔ Correct Answer: C. Fat
Explanation: Fat is the most energy-dense macronutrient.
15. Which condition is associated with excessive sodium intake
A. Hypotension
B. Hypertension
C. Anemia
D. Osteoporosis
✔ Correct Answer: B. Hypertension
Explanation: High sodium intake increases blood pressure.
16. A deficiency in vitamin D during childhood leads to
A. Scurvy
B. Rickets
C. Beriberi
D. Pellagra
✔ Correct Answer: B. Rickets
Explanation: Vitamin D deficiency affects bone mineralization in children.
17. Which nutrient is essential for oxygen transport in blood
A. Calcium
B. Iron
C. Zinc
D. Magnesium
