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WGU D440 Health and Wellness Through Nutritional
Science Final Exam 2026/2027 Actual Exam -
Complete Questions with Detailed Rationales | 100%
Verified Graded A+ Pass Guaranteed - A+ Graded
Section 1: Fundamentals of Nutrition
Q1: According to the Dietary Reference Intakes (DRI), which value is established when there is
not enough scientific evidence to calculate an RDA?
A. Estimated Average Requirement (EAR)
B. Recommended Dietary Allowance (RDA)
C. Adequate Intake (AI) [CORRECT]
D. Tolerable Upper Intake Level (UL)
Correct Answer: C
Rationale: The Adequate Intake (AI) is a recommended average daily nutrient intake level based
on observed or experimentally determined estimates by a group of healthy people. It is used
when an RDA cannot be determined due to insufficient scientific evidence.
Q2: A client is reading a food label and notices that a serving of their favorite snack provides
10% of the Daily Value for saturated fat. According to the Dietary Guidelines for Americans,
how should the client interpret this percentage?
A. It is considered low in saturated fat.
B. It is considered high in saturated fat. [CORRECT]
C. It indicates the food is a good source of this nutrient.
D. It means the food contains no saturated fat.
Correct Answer: B
Rationale: The Daily Value (DV) guideline states that 5% DV or less of a nutrient per serving is
considered low, while 20% DV or more is considered high. Therefore, 10% falls in the moderate
range, but for saturated fat, a nutrient to limit, 10% is closer to the high end and should be
consumed with caution.
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Q3: Which of the following best describes the concept of "nutrient density"?
A. Foods that are high in calories but low in vitamins.
B. Foods that provide a high amount of nutrients relative to their calorie content. [CORRECT]
C. Foods that are fortified with synthetic vitamins.
D. Foods that contain the highest percentage of fat.
Correct Answer: B
Rationale: Nutrient density refers to the proportion of essential nutrients (vitamins, minerals,
fiber) a food provides in relation to its energy (calorie) content. Vegetables and lean proteins are
highly nutrient-dense.
Q4: The MyPlate graphic replaced the Food Guide Pyramid. According to MyPlate,
approximately what fraction of the plate should be filled with fruits and vegetables combined?
A. One-quarter
B. One-third
C. One-half [CORRECT]
D. Three-quarters
Correct Answer: C
Rationale: MyPlate visually divides a standard dinner plate into sections, recommending that half
the plate consist of fruits and vegetables to promote adequate intake of vitamins, minerals, and
dietary fiber.
Q5: A patient consumes a 500-calorie fast-food meal that contains very few vitamins or minerals.
These 500 calories are best described as:
A. Essential calories
B. Empty calories [CORRECT]
C. Basal calories
D. Functional calories
Correct Answer: B
,3
Rationale: Empty calories refer to calories from solid fats and added sugars that provide energy
but little to no nutritional value, such as those found in fast food, sodas, and sweets.
Q6: Which DRI value is most appropriate for evaluating the nutrient intake of a population to
estimate the prevalence of inadequacy?
A. Recommended Dietary Allowance (RDA)
B. Tolerable Upper Intake Level (UL)
C. Estimated Average Requirement (EAR) [CORRECT]
D. Adequate Intake (AI)
Correct Answer: C
Rationale: The EAR is the average daily nutrient intake level estimated to meet the requirements
of half of the healthy individuals in a particular life stage and group. It is specifically used to
assess the nutritional adequacy of populations.
Q7: According to the 2020-2025 Dietary Guidelines for Americans, what is the recommended
maximum percentage of total daily calories that should come from added sugars?
A. 5%
B. 10% [CORRECT]
C. 15%
D. 25%
Correct Answer: B
Rationale: The Dietary Guidelines recommend that individuals aged 2 years and older limit their
intake of added sugars to less than 10% of total daily calories to help reduce the risk of chronic
disease.
Q8: A food label states "Percent Daily Values are based on a 2,000 calorie diet." Why might a
individual's actual needs differ from this standard?
A. Daily Values are legally required to be incorrect.
B. Calorie needs vary based on age, sex, height, weight, and physical activity level. [CORRECT]
C. Daily Values only apply to individuals with diabetes.
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D. The 2,000 calorie standard is meant only for children.
Correct Answer: B
Rationale: The 2,000-calorie reference is a general standard for food labels, but actual energy
requirements vary widely among individuals based on their unique physiological characteristics
and activity levels.
Q9: Overnutrition is characterized by:
A. Inadequate intake of essential nutrients leading to deficiency diseases.
B. Excessive intake of calories and/or nutrients leading to obesity or toxicity. [CORRECT]
C. The inability to absorb nutrients due to gastrointestinal illness.
D. A balanced intake of macronutrients and micronutrients.
Correct Answer: B
Rationale: Overnutrition occurs when nutrient intake exceeds the body's needs, which can result
in obesity (from excess calories) or hypervitaminosis (from excess micronutrients).
Q10: Which of the following statements about the ingredient list on a food label is true?
A. Ingredients are listed in random order.
B. Ingredients are listed in descending order by weight. [CORRECT]
C. The first ingredient listed is present in the smallest amount.
D. Added sugars are not required to be listed.
Correct Answer: B
Rationale: By law, ingredients on a food label must be listed in descending order of
predominance by weight. This means the ingredient that weighs the most is listed first.
Q11: Which of the following is an example of a "functional food"?
A. A bottle of soda
B. White refined bread
C. Yogurt fortified with probiotics [CORRECT]
WGU D440 Health and Wellness Through Nutritional
Science Final Exam 2026/2027 Actual Exam -
Complete Questions with Detailed Rationales | 100%
Verified Graded A+ Pass Guaranteed - A+ Graded
Section 1: Fundamentals of Nutrition
Q1: According to the Dietary Reference Intakes (DRI), which value is established when there is
not enough scientific evidence to calculate an RDA?
A. Estimated Average Requirement (EAR)
B. Recommended Dietary Allowance (RDA)
C. Adequate Intake (AI) [CORRECT]
D. Tolerable Upper Intake Level (UL)
Correct Answer: C
Rationale: The Adequate Intake (AI) is a recommended average daily nutrient intake level based
on observed or experimentally determined estimates by a group of healthy people. It is used
when an RDA cannot be determined due to insufficient scientific evidence.
Q2: A client is reading a food label and notices that a serving of their favorite snack provides
10% of the Daily Value for saturated fat. According to the Dietary Guidelines for Americans,
how should the client interpret this percentage?
A. It is considered low in saturated fat.
B. It is considered high in saturated fat. [CORRECT]
C. It indicates the food is a good source of this nutrient.
D. It means the food contains no saturated fat.
Correct Answer: B
Rationale: The Daily Value (DV) guideline states that 5% DV or less of a nutrient per serving is
considered low, while 20% DV or more is considered high. Therefore, 10% falls in the moderate
range, but for saturated fat, a nutrient to limit, 10% is closer to the high end and should be
consumed with caution.
,2
Q3: Which of the following best describes the concept of "nutrient density"?
A. Foods that are high in calories but low in vitamins.
B. Foods that provide a high amount of nutrients relative to their calorie content. [CORRECT]
C. Foods that are fortified with synthetic vitamins.
D. Foods that contain the highest percentage of fat.
Correct Answer: B
Rationale: Nutrient density refers to the proportion of essential nutrients (vitamins, minerals,
fiber) a food provides in relation to its energy (calorie) content. Vegetables and lean proteins are
highly nutrient-dense.
Q4: The MyPlate graphic replaced the Food Guide Pyramid. According to MyPlate,
approximately what fraction of the plate should be filled with fruits and vegetables combined?
A. One-quarter
B. One-third
C. One-half [CORRECT]
D. Three-quarters
Correct Answer: C
Rationale: MyPlate visually divides a standard dinner plate into sections, recommending that half
the plate consist of fruits and vegetables to promote adequate intake of vitamins, minerals, and
dietary fiber.
Q5: A patient consumes a 500-calorie fast-food meal that contains very few vitamins or minerals.
These 500 calories are best described as:
A. Essential calories
B. Empty calories [CORRECT]
C. Basal calories
D. Functional calories
Correct Answer: B
,3
Rationale: Empty calories refer to calories from solid fats and added sugars that provide energy
but little to no nutritional value, such as those found in fast food, sodas, and sweets.
Q6: Which DRI value is most appropriate for evaluating the nutrient intake of a population to
estimate the prevalence of inadequacy?
A. Recommended Dietary Allowance (RDA)
B. Tolerable Upper Intake Level (UL)
C. Estimated Average Requirement (EAR) [CORRECT]
D. Adequate Intake (AI)
Correct Answer: C
Rationale: The EAR is the average daily nutrient intake level estimated to meet the requirements
of half of the healthy individuals in a particular life stage and group. It is specifically used to
assess the nutritional adequacy of populations.
Q7: According to the 2020-2025 Dietary Guidelines for Americans, what is the recommended
maximum percentage of total daily calories that should come from added sugars?
A. 5%
B. 10% [CORRECT]
C. 15%
D. 25%
Correct Answer: B
Rationale: The Dietary Guidelines recommend that individuals aged 2 years and older limit their
intake of added sugars to less than 10% of total daily calories to help reduce the risk of chronic
disease.
Q8: A food label states "Percent Daily Values are based on a 2,000 calorie diet." Why might a
individual's actual needs differ from this standard?
A. Daily Values are legally required to be incorrect.
B. Calorie needs vary based on age, sex, height, weight, and physical activity level. [CORRECT]
C. Daily Values only apply to individuals with diabetes.
, 4
D. The 2,000 calorie standard is meant only for children.
Correct Answer: B
Rationale: The 2,000-calorie reference is a general standard for food labels, but actual energy
requirements vary widely among individuals based on their unique physiological characteristics
and activity levels.
Q9: Overnutrition is characterized by:
A. Inadequate intake of essential nutrients leading to deficiency diseases.
B. Excessive intake of calories and/or nutrients leading to obesity or toxicity. [CORRECT]
C. The inability to absorb nutrients due to gastrointestinal illness.
D. A balanced intake of macronutrients and micronutrients.
Correct Answer: B
Rationale: Overnutrition occurs when nutrient intake exceeds the body's needs, which can result
in obesity (from excess calories) or hypervitaminosis (from excess micronutrients).
Q10: Which of the following statements about the ingredient list on a food label is true?
A. Ingredients are listed in random order.
B. Ingredients are listed in descending order by weight. [CORRECT]
C. The first ingredient listed is present in the smallest amount.
D. Added sugars are not required to be listed.
Correct Answer: B
Rationale: By law, ingredients on a food label must be listed in descending order of
predominance by weight. This means the ingredient that weighs the most is listed first.
Q11: Which of the following is an example of a "functional food"?
A. A bottle of soda
B. White refined bread
C. Yogurt fortified with probiotics [CORRECT]
