WGU D440 FINAL EXAM Actual Exam
2026/2027 Complete Questions and Verified
Answers with Detailed Rationales Health and
Wellness Through Nutritional Science Grade A
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SECTION 1: FOUNDATIONS OF NUTRITION (Questions 1-15)
Q1: According to the Dietary Guidelines for Americans, which of the following is a key
recommendation for healthy eating patterns?
• A. Consume less than 10% of calories per day from added sugars. [CORRECT]
• B. Eliminate all carbohydrates from the diet
• C. Consume at least 50% of calories from saturated fats
• D. Avoid all dietary fiber
Correct Answer: A
Rationale: The Dietary Guidelines for Americans recommend consuming less than 10% of
calories per day from added sugars (A). Eliminating all carbohydrates (B) is not recommended as
they are the body's primary energy source. Saturated fats should be limited to less than 10% of
calories (C). Dietary fiber is essential for digestive health and disease prevention (D).
Q2: Which component of the ABCD nutrition assessment method involves measuring height,
weight, BMI, and waist circumference?
• A. Biochemical assessment
• B. Anthropometric assessment [CORRECT]
• C. Clinical assessment
• D. Dietary assessment
Correct Answer: B
Rationale: Anthropometric assessment (B) involves physical measurements including height,
weight, BMI, and waist circumference to evaluate body composition and nutritional status.
,Biochemical (A) involves laboratory tests, clinical (C) involves physical examination, and
dietary (D) involves food intake analysis.
Q3: The MyPlate food guidance system recommends that fruits and vegetables should occupy
what proportion of the plate?
• A. One-quarter
• B. One-third
• C. One-half [CORRECT]
• D. Three-quarters
Correct Answer: C
Rationale: MyPlate recommends that fruits and vegetables together occupy one-half (50%) of
the plate (C), with vegetables comprising slightly more than fruits. Grains and protein foods each
occupy one-quarter, and dairy is represented as a side serving.
Q4: Which factor influencing food choices is primarily driven by religious beliefs, family
traditions, and ethnic heritage?
• A. Personal preferences
• B. Cultural factors [CORRECT]
• C. Economic factors
• D. Environmental factors
Correct Answer: B
Rationale: Cultural factors (B) encompass religious dietary laws, traditional foods, and ethnic
eating patterns that shape food choices. Personal preferences (A) involve individual taste,
economic factors (C) involve cost and availability, and environmental factors (D) involve
sustainability and food access.
Q5: Which of the following best describes the difference between undernutrition and
overnutrition?
• A. Undernutrition involves micronutrient deficiencies while overnutrition involves
macronutrient deficiencies
, • B. Undernutrition results from inadequate nutrient intake while overnutrition results from
excessive nutrient intake [CORRECT]
• C. Undernutrition only occurs in children while overnutrition only occurs in adults
• D. Undernutrition is caused by disease while overnutrition is caused by genetics
Correct Answer: B
Rationale: Undernutrition results from inadequate intake of energy and/or nutrients leading to
malnutrition (B), while overnutrition results from excessive intake, particularly of energy,
leading to overweight/obesity. Both can occur at any age and have multiple etiologies.
Q6: A 24-hour dietary recall is an example of which type of nutrition assessment?
• A. Anthropometric
• B. Biochemical
• C. Clinical
• D. Dietary [CORRECT]
Correct Answer: D
Rationale: A 24-hour dietary recall (D) is a dietary assessment method where individuals report
all foods and beverages consumed in the previous 24 hours. It provides information on nutrient
intake patterns but relies on accurate self-reporting.
Q7: According to the Dietary Guidelines for Americans, which recommendation supports
healthy eating patterns across the lifespan?
• A. Follow a healthy eating pattern at all life stages [CORRECT]
• B. Eliminate all animal products after age 50
• C. Reduce vegetable intake during adolescence
• D. Increase added sugars during pregnancy
Correct Answer: A
Rationale: The Dietary Guidelines emphasize following a healthy eating pattern at all life stages
(A) to promote health and prevent chronic disease. Recommendations are adjusted for specific
life stages but core principles of nutrient density and variety remain consistent.
, Q8: Which nutrient density concept refers to foods that provide substantial amounts of vitamins,
minerals, and other beneficial substances with relatively few calories?
• A. Empty calories
• B. Energy-dense foods
• C. Nutrient-dense foods [CORRECT]
• D. Calorie-dense foods
Correct Answer: C
Rationale: Nutrient-dense foods (C) provide high amounts of nutrients relative to their calorie
content (e.g., vegetables, fruits, lean proteins). Empty calories (A) provide calories with few
nutrients. Energy-dense (B) and calorie-dense (D) foods provide high calories relative to volume.
Q9: In the context of nutrition assessment, which laboratory value would be most indicative of
iron status?
• A. Serum albumin
• B. Hemoglobin [CORRECT]
• C. Blood glucose
• D. Total cholesterol
Correct Answer: B
Rationale: Hemoglobin (B) is a primary biochemical indicator of iron status and anemia. Low
hemoglobin suggests iron deficiency anemia. Serum albumin (A) indicates protein status, blood
glucose (C) indicates carbohydrate metabolism, and cholesterol (D) indicates lipid status.
Q10: Which of the following is NOT one of the five food groups in the MyPlate system?
• A. Fruits
• B. Vegetables
• C. Fats and oils [CORRECT]
• D. Protein foods
Correct Answer: C
2026/2027 Complete Questions and Verified
Answers with Detailed Rationales Health and
Wellness Through Nutritional Science Grade A
Pass Guaranteed - A+ Graded
SECTION 1: FOUNDATIONS OF NUTRITION (Questions 1-15)
Q1: According to the Dietary Guidelines for Americans, which of the following is a key
recommendation for healthy eating patterns?
• A. Consume less than 10% of calories per day from added sugars. [CORRECT]
• B. Eliminate all carbohydrates from the diet
• C. Consume at least 50% of calories from saturated fats
• D. Avoid all dietary fiber
Correct Answer: A
Rationale: The Dietary Guidelines for Americans recommend consuming less than 10% of
calories per day from added sugars (A). Eliminating all carbohydrates (B) is not recommended as
they are the body's primary energy source. Saturated fats should be limited to less than 10% of
calories (C). Dietary fiber is essential for digestive health and disease prevention (D).
Q2: Which component of the ABCD nutrition assessment method involves measuring height,
weight, BMI, and waist circumference?
• A. Biochemical assessment
• B. Anthropometric assessment [CORRECT]
• C. Clinical assessment
• D. Dietary assessment
Correct Answer: B
Rationale: Anthropometric assessment (B) involves physical measurements including height,
weight, BMI, and waist circumference to evaluate body composition and nutritional status.
,Biochemical (A) involves laboratory tests, clinical (C) involves physical examination, and
dietary (D) involves food intake analysis.
Q3: The MyPlate food guidance system recommends that fruits and vegetables should occupy
what proportion of the plate?
• A. One-quarter
• B. One-third
• C. One-half [CORRECT]
• D. Three-quarters
Correct Answer: C
Rationale: MyPlate recommends that fruits and vegetables together occupy one-half (50%) of
the plate (C), with vegetables comprising slightly more than fruits. Grains and protein foods each
occupy one-quarter, and dairy is represented as a side serving.
Q4: Which factor influencing food choices is primarily driven by religious beliefs, family
traditions, and ethnic heritage?
• A. Personal preferences
• B. Cultural factors [CORRECT]
• C. Economic factors
• D. Environmental factors
Correct Answer: B
Rationale: Cultural factors (B) encompass religious dietary laws, traditional foods, and ethnic
eating patterns that shape food choices. Personal preferences (A) involve individual taste,
economic factors (C) involve cost and availability, and environmental factors (D) involve
sustainability and food access.
Q5: Which of the following best describes the difference between undernutrition and
overnutrition?
• A. Undernutrition involves micronutrient deficiencies while overnutrition involves
macronutrient deficiencies
, • B. Undernutrition results from inadequate nutrient intake while overnutrition results from
excessive nutrient intake [CORRECT]
• C. Undernutrition only occurs in children while overnutrition only occurs in adults
• D. Undernutrition is caused by disease while overnutrition is caused by genetics
Correct Answer: B
Rationale: Undernutrition results from inadequate intake of energy and/or nutrients leading to
malnutrition (B), while overnutrition results from excessive intake, particularly of energy,
leading to overweight/obesity. Both can occur at any age and have multiple etiologies.
Q6: A 24-hour dietary recall is an example of which type of nutrition assessment?
• A. Anthropometric
• B. Biochemical
• C. Clinical
• D. Dietary [CORRECT]
Correct Answer: D
Rationale: A 24-hour dietary recall (D) is a dietary assessment method where individuals report
all foods and beverages consumed in the previous 24 hours. It provides information on nutrient
intake patterns but relies on accurate self-reporting.
Q7: According to the Dietary Guidelines for Americans, which recommendation supports
healthy eating patterns across the lifespan?
• A. Follow a healthy eating pattern at all life stages [CORRECT]
• B. Eliminate all animal products after age 50
• C. Reduce vegetable intake during adolescence
• D. Increase added sugars during pregnancy
Correct Answer: A
Rationale: The Dietary Guidelines emphasize following a healthy eating pattern at all life stages
(A) to promote health and prevent chronic disease. Recommendations are adjusted for specific
life stages but core principles of nutrient density and variety remain consistent.
, Q8: Which nutrient density concept refers to foods that provide substantial amounts of vitamins,
minerals, and other beneficial substances with relatively few calories?
• A. Empty calories
• B. Energy-dense foods
• C. Nutrient-dense foods [CORRECT]
• D. Calorie-dense foods
Correct Answer: C
Rationale: Nutrient-dense foods (C) provide high amounts of nutrients relative to their calorie
content (e.g., vegetables, fruits, lean proteins). Empty calories (A) provide calories with few
nutrients. Energy-dense (B) and calorie-dense (D) foods provide high calories relative to volume.
Q9: In the context of nutrition assessment, which laboratory value would be most indicative of
iron status?
• A. Serum albumin
• B. Hemoglobin [CORRECT]
• C. Blood glucose
• D. Total cholesterol
Correct Answer: B
Rationale: Hemoglobin (B) is a primary biochemical indicator of iron status and anemia. Low
hemoglobin suggests iron deficiency anemia. Serum albumin (A) indicates protein status, blood
glucose (C) indicates carbohydrate metabolism, and cholesterol (D) indicates lipid status.
Q10: Which of the following is NOT one of the five food groups in the MyPlate system?
• A. Fruits
• B. Vegetables
• C. Fats and oils [CORRECT]
• D. Protein foods
Correct Answer: C
