WGU D440 NUTRITION PRE-ASSESSMENT EXAM PREP
2026/2027 | ACTUAL EXAM AND CURRENTLY TESTING WITH
VERIFIED ANSWERS AND RATIONALES | EXPERT VERIFIED FOR
GUARANTEED PASS | LATEST UPDATE |
INTRODUCTION
This comprehensive practice exam is designed for students preparing for the
WGU D440 Nutrition Pre-Assessment and Objective Assessment (OA) for the
2026/2027 academic cycle. The course, Health and Wellness Through Nutritional
Science, covers the science of nutrition and its role in promoting health and
wellness. Key areas include macronutrients (carbohydrates, proteins, fats,
fiber, and water), micronutrients (fat-soluble and water-soluble vitamins,
minerals, electrolytes), digestion and absorption, metabolism and energy
balance, dietary guidelines (MyPlate, RDAs, DRIs), nutrition across the
lifespan (infancy, childhood, pregnancy, aging), therapeutic diets for various
disease states, enteral and parenteral nutrition, nutritional assessment
(ABCD methods), and health promotion strategies. This exam consists of 200
multiple-choice questions with detailed explanations to reinforce
understanding and ensure exam readiness.
SECTION 1: CORE NUTRITION CONCEPTS (Questions 1–25)
Question 1
What is the definition of nutrition?
A. The study of food processing and packaging
B. The intake of food, considered in relation to the body's dietary needs
C. The study of the effects of food components on disease
D. The practice of eliminating food groups for health
Correct Answer: B
Rationale: Nutrition is defined as the intake of food, considered in relation
to the body's dietary needs. Nutrition science is the study of the effects of
food components on metabolism, health, performance, and disease
resistance.[reference:0]
Question 2
What is the correct term for the discipline that applies nutrition science to
1
,promote human health and treat disease?
A. Dietetics
B. Nutritional epidemiology
C. Food science
D. Wellness coaching
Correct Answer: A
Rationale: Dietetics is the use of evidence-based practices in the area of food
and nutrition to improve and maintain good health.[reference:1]
Question 3
Which of the following is an example of an essential nutrient?
A. Glucose
B. Vitamin C
C. Glycogen
D. Cholesterol
Correct Answer: B
Rationale: Essential nutrients are those that the body cannot synthesize in
sufficient amounts and must be obtained from the diet. Vitamin C is an
essential nutrient. Glucose and glycogen can be synthesized by the body, and
cholesterol is synthesized by the liver.[reference:2]
Question 4
Which of the following is a macronutrient?
A. Vitamin C
B. Calcium
C. Protein
D. Iron
Correct Answer: C
Rationale: Macronutrients are nutrients required in large amounts:
carbohydrates,
proteins, and fats. Vitamins and minerals are micronutrients, required in
smaller amounts.
2
,Question 5
Which of the following provides the most energy per gram?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Correct Answer: C
Rationale: Fats provide 9 kcal per gram, while carbohydrates and proteins each
provide 4 kcal per gram. Alcohol provides 7 kcal per gram but is not a nutrient.
Question 6
The basal metabolic rate (BMR) is defined as:
A. The energy required for physical activity
B. The energy required to maintain vital body functions at rest
C. The energy required to digest food
D. The total daily energy expenditure
Correct Answer: B
Rationale: Basal metabolic rate (BMR) is the energy expended to maintain basic
physiological functions such as breathing, circulation, and temperature
regulation while at rest. It accounts for the largest portion of total daily
energy expenditure.
Question 7
Which of the following is a component of a nutritional assessment?
A. Anthropometric measurements
B. Biochemical data
C. Clinical evaluation
D. All of the above
Correct Answer: D
Rationale: The ABCD method of nutritional assessment includes Anthropometric
measurements (weight, height, BMI, body composition), Biochemical data (lab
values), Clinical evaluation (physical exam findings), and Dietary intake
analysis (food records, 24-hour recall).[reference:3]
3
, Question 8
What is the Acceptable Macronutrient Distribution Range (AMDR) for
carbohydrates?
A. 10-20% of total calories
B. 20-35% of total calories
C. 45-65% of total calories
D. 65-75% of total calories
Correct Answer: C
Rationale: The AMDR for carbohydrates is 45-65% of total daily calories.
Proteins are 10-35%, and fats are 20-35%.
Question 9
Which of the following is the most accurate method for assessing body
composition?
A. Body Mass Index (BMI)
B. Skinfold thickness measurements
C. Dual-energy X-ray absorptiometry (DEXA)
D. Bioelectrical impedance analysis (BIA)
Correct Answer: C
Rationale: DEXA is considered one of the most accurate methods for assessing
body composition, as it can differentiate between fat mass, lean mass, and bone
mineral density. BMI is a screening tool, not a direct measure of body
composition.
Question 10
The Recommended Dietary Allowance (RDA) is defined as:
A. The minimum amount of a nutrient needed to prevent deficiency
B. The average daily nutrient intake level sufficient to meet the requirements
of nearly all (97-98%) healthy individuals
C. The maximum safe intake level of a nutrient
D. The amount of a nutrient found in a typical diet
Correct Answer: B
4
2026/2027 | ACTUAL EXAM AND CURRENTLY TESTING WITH
VERIFIED ANSWERS AND RATIONALES | EXPERT VERIFIED FOR
GUARANTEED PASS | LATEST UPDATE |
INTRODUCTION
This comprehensive practice exam is designed for students preparing for the
WGU D440 Nutrition Pre-Assessment and Objective Assessment (OA) for the
2026/2027 academic cycle. The course, Health and Wellness Through Nutritional
Science, covers the science of nutrition and its role in promoting health and
wellness. Key areas include macronutrients (carbohydrates, proteins, fats,
fiber, and water), micronutrients (fat-soluble and water-soluble vitamins,
minerals, electrolytes), digestion and absorption, metabolism and energy
balance, dietary guidelines (MyPlate, RDAs, DRIs), nutrition across the
lifespan (infancy, childhood, pregnancy, aging), therapeutic diets for various
disease states, enteral and parenteral nutrition, nutritional assessment
(ABCD methods), and health promotion strategies. This exam consists of 200
multiple-choice questions with detailed explanations to reinforce
understanding and ensure exam readiness.
SECTION 1: CORE NUTRITION CONCEPTS (Questions 1–25)
Question 1
What is the definition of nutrition?
A. The study of food processing and packaging
B. The intake of food, considered in relation to the body's dietary needs
C. The study of the effects of food components on disease
D. The practice of eliminating food groups for health
Correct Answer: B
Rationale: Nutrition is defined as the intake of food, considered in relation
to the body's dietary needs. Nutrition science is the study of the effects of
food components on metabolism, health, performance, and disease
resistance.[reference:0]
Question 2
What is the correct term for the discipline that applies nutrition science to
1
,promote human health and treat disease?
A. Dietetics
B. Nutritional epidemiology
C. Food science
D. Wellness coaching
Correct Answer: A
Rationale: Dietetics is the use of evidence-based practices in the area of food
and nutrition to improve and maintain good health.[reference:1]
Question 3
Which of the following is an example of an essential nutrient?
A. Glucose
B. Vitamin C
C. Glycogen
D. Cholesterol
Correct Answer: B
Rationale: Essential nutrients are those that the body cannot synthesize in
sufficient amounts and must be obtained from the diet. Vitamin C is an
essential nutrient. Glucose and glycogen can be synthesized by the body, and
cholesterol is synthesized by the liver.[reference:2]
Question 4
Which of the following is a macronutrient?
A. Vitamin C
B. Calcium
C. Protein
D. Iron
Correct Answer: C
Rationale: Macronutrients are nutrients required in large amounts:
carbohydrates,
proteins, and fats. Vitamins and minerals are micronutrients, required in
smaller amounts.
2
,Question 5
Which of the following provides the most energy per gram?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Correct Answer: C
Rationale: Fats provide 9 kcal per gram, while carbohydrates and proteins each
provide 4 kcal per gram. Alcohol provides 7 kcal per gram but is not a nutrient.
Question 6
The basal metabolic rate (BMR) is defined as:
A. The energy required for physical activity
B. The energy required to maintain vital body functions at rest
C. The energy required to digest food
D. The total daily energy expenditure
Correct Answer: B
Rationale: Basal metabolic rate (BMR) is the energy expended to maintain basic
physiological functions such as breathing, circulation, and temperature
regulation while at rest. It accounts for the largest portion of total daily
energy expenditure.
Question 7
Which of the following is a component of a nutritional assessment?
A. Anthropometric measurements
B. Biochemical data
C. Clinical evaluation
D. All of the above
Correct Answer: D
Rationale: The ABCD method of nutritional assessment includes Anthropometric
measurements (weight, height, BMI, body composition), Biochemical data (lab
values), Clinical evaluation (physical exam findings), and Dietary intake
analysis (food records, 24-hour recall).[reference:3]
3
, Question 8
What is the Acceptable Macronutrient Distribution Range (AMDR) for
carbohydrates?
A. 10-20% of total calories
B. 20-35% of total calories
C. 45-65% of total calories
D. 65-75% of total calories
Correct Answer: C
Rationale: The AMDR for carbohydrates is 45-65% of total daily calories.
Proteins are 10-35%, and fats are 20-35%.
Question 9
Which of the following is the most accurate method for assessing body
composition?
A. Body Mass Index (BMI)
B. Skinfold thickness measurements
C. Dual-energy X-ray absorptiometry (DEXA)
D. Bioelectrical impedance analysis (BIA)
Correct Answer: C
Rationale: DEXA is considered one of the most accurate methods for assessing
body composition, as it can differentiate between fat mass, lean mass, and bone
mineral density. BMI is a screening tool, not a direct measure of body
composition.
Question 10
The Recommended Dietary Allowance (RDA) is defined as:
A. The minimum amount of a nutrient needed to prevent deficiency
B. The average daily nutrient intake level sufficient to meet the requirements
of nearly all (97-98%) healthy individuals
C. The maximum safe intake level of a nutrient
D. The amount of a nutrient found in a typical diet
Correct Answer: B
4
