DHN 101 Exam 3 Complete Review:
300 Practice Questions Covering
Vitamins, Minerals, and Lifecycle
Nutrition [Latest Update 2026/
Verified/ Already Graded A+]
1. During pregnancy, which nutrient requirement increases
the most?
A. Vitamin C
B. Iron
C. Sodium
D. Vitamin K
Answer: B. Iron
Explanation: Iron is critical for increasing maternal red blood cell
mass and supporting fetal development. The requirement increases
significantly during pregnancy to prevent anemia.
2. Folic acid is essential for preventing:
A. Anemia
B. Neural tube defects
C. Osteoporosis
D. Hypertension
Answer: B. Neural tube defects
Explanation: Adequate folic acid intake before and during early
pregnancy is crucial for the proper closure of the neural tube, which
becomes the baby's brain and spinal cord.
,3. Exclusive breastfeeding is recommended for the first:
A. 3 months
B. 6 months
C. 9 months
D. 12 months
Answer: B. 6 months
Explanation: Major health organizations recommend exclusive
breastfeeding for the first six months of an infant's life for optimal
nutrition and immune protection.
4. Which nutrient is critical for bone growth in adolescents?
A. Iron
B. Calcium
C. Vitamin C
D. Sodium
Answer: B. Calcium
Explanation: This period of rapid bone mineralization requires a
high intake of calcium to build peak bone mass, which is important
for long-term skeletal health.
5. Kwashiorkor is caused by a deficiency of:
A. Fat
B. Protein
C. Carbohydrates
D. Vitamins
Answer: B. Protein
Explanation: Kwashiorkor is a form of severe malnutrition
characterized by protein deficiency, leading to edema (fluid
retention) and a distended belly.
,6. Marasmus is characterized by:
A. Fluid retention
B. Severe wasting
C. Obesity
D. Bone deformity
Answer: B. Severe wasting
Explanation: Marasmus is a form of severe malnutrition caused by a
deficiency of both calories and protein, leading to a severe loss of
muscle and fat tissue (wasting).
7. Which condition is linked to excessive sodium intake?
A. Diabetes
B. Hypertension
C. Anemia
D. Osteoporosis
Answer: B. Hypertension
Explanation: A high-sodium diet is a major risk factor for
hypertension (high blood pressure), as it increases blood volume
and puts strain on blood vessels.
8. Atherosclerosis involves:
A. Bone loss
B. Artery plaque buildup
C. Muscle loss
D. Nerve damage
Answer: B. Artery plaque buildup
Explanation: Atherosclerosis is the hardening and narrowing of
arteries due to the buildup of plaque, which is made of fat,
cholesterol, and other substances.
, 9. HDL cholesterol is considered:
A. Harmful
B. Protective
C. Neutral
D. Toxic
Answer: B. Protective
Explanation: High-Density Lipoprotein (HDL) is often called "good"
cholesterol because it helps remove other forms of cholesterol from
the bloodstream, reducing the risk of heart disease.
10. LDL cholesterol is:
A. Good
B. Bad
C. Essential only
D. A vitamin
Answer: B. Bad
Explanation: Low-Density Lipoprotein (LDL) is often called "bad"
cholesterol because high levels can lead to the buildup of plaque in
arteries, increasing the risk of heart disease and stroke.
11. Obesity increases the risk of:
A. Hypertension
B. Diabetes
C. Heart disease
D. All of the above
Answer: D. All of the above
Explanation: Obesity is a significant risk factor for many chronic
diseases, including hypertension, type 2 diabetes, and heart
disease.
300 Practice Questions Covering
Vitamins, Minerals, and Lifecycle
Nutrition [Latest Update 2026/
Verified/ Already Graded A+]
1. During pregnancy, which nutrient requirement increases
the most?
A. Vitamin C
B. Iron
C. Sodium
D. Vitamin K
Answer: B. Iron
Explanation: Iron is critical for increasing maternal red blood cell
mass and supporting fetal development. The requirement increases
significantly during pregnancy to prevent anemia.
2. Folic acid is essential for preventing:
A. Anemia
B. Neural tube defects
C. Osteoporosis
D. Hypertension
Answer: B. Neural tube defects
Explanation: Adequate folic acid intake before and during early
pregnancy is crucial for the proper closure of the neural tube, which
becomes the baby's brain and spinal cord.
,3. Exclusive breastfeeding is recommended for the first:
A. 3 months
B. 6 months
C. 9 months
D. 12 months
Answer: B. 6 months
Explanation: Major health organizations recommend exclusive
breastfeeding for the first six months of an infant's life for optimal
nutrition and immune protection.
4. Which nutrient is critical for bone growth in adolescents?
A. Iron
B. Calcium
C. Vitamin C
D. Sodium
Answer: B. Calcium
Explanation: This period of rapid bone mineralization requires a
high intake of calcium to build peak bone mass, which is important
for long-term skeletal health.
5. Kwashiorkor is caused by a deficiency of:
A. Fat
B. Protein
C. Carbohydrates
D. Vitamins
Answer: B. Protein
Explanation: Kwashiorkor is a form of severe malnutrition
characterized by protein deficiency, leading to edema (fluid
retention) and a distended belly.
,6. Marasmus is characterized by:
A. Fluid retention
B. Severe wasting
C. Obesity
D. Bone deformity
Answer: B. Severe wasting
Explanation: Marasmus is a form of severe malnutrition caused by a
deficiency of both calories and protein, leading to a severe loss of
muscle and fat tissue (wasting).
7. Which condition is linked to excessive sodium intake?
A. Diabetes
B. Hypertension
C. Anemia
D. Osteoporosis
Answer: B. Hypertension
Explanation: A high-sodium diet is a major risk factor for
hypertension (high blood pressure), as it increases blood volume
and puts strain on blood vessels.
8. Atherosclerosis involves:
A. Bone loss
B. Artery plaque buildup
C. Muscle loss
D. Nerve damage
Answer: B. Artery plaque buildup
Explanation: Atherosclerosis is the hardening and narrowing of
arteries due to the buildup of plaque, which is made of fat,
cholesterol, and other substances.
, 9. HDL cholesterol is considered:
A. Harmful
B. Protective
C. Neutral
D. Toxic
Answer: B. Protective
Explanation: High-Density Lipoprotein (HDL) is often called "good"
cholesterol because it helps remove other forms of cholesterol from
the bloodstream, reducing the risk of heart disease.
10. LDL cholesterol is:
A. Good
B. Bad
C. Essential only
D. A vitamin
Answer: B. Bad
Explanation: Low-Density Lipoprotein (LDL) is often called "bad"
cholesterol because high levels can lead to the buildup of plaque in
arteries, increasing the risk of heart disease and stroke.
11. Obesity increases the risk of:
A. Hypertension
B. Diabetes
C. Heart disease
D. All of the above
Answer: D. All of the above
Explanation: Obesity is a significant risk factor for many chronic
diseases, including hypertension, type 2 diabetes, and heart
disease.
