WGU D440 EXAM 300 ACTUAL QUESTIONS AND CORRECT ANSWERS WITH RATIONALE LATEST UPDATE ALREADY GRADED A+ ASSURED PASS

WGU D440 EXAM 300 ACTUAL QUESTIONS AND
CORRECT ANSWERS WITH RATIONALE LATEST
UPDATE ALREADY GRADED A+ ASSURED PASS



This comprehensive set of 300 unique multiple-choice questions is meticulously
designed to prepare candidates for the WGU D440 Nutrition Objective Exam by
covering the full spectrum of nutritional science content. The questions are
systematically organized into sections addressing core nutrition concepts,
macronutrients, vitamins and minerals, digestion and metabolism, nutrition across
the lifespan, therapeutic diets, enteral and parenteral nutrition, weight management,
and disease-specific nutrition for cardiovascular, renal, gastrointestinal, diabetic,
and oncological conditions. Each question includes a correct answer with a
detailed rationale to reinforce understanding of evidence-based nutritional
principles. The content emphasizes the application of nutrition science in clinical
practice, dietary assessment, and patient education. This resource serves as an
invaluable study tool for mastering the complexities of nutrition and achieving
success on the WGU D440 examination.

Section 1: Core Nutrition Concepts and Macronutrients
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 .

,Question 2: 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 on its own
(or not in adequate amounts) and must be provided by the diet, such as vitamin C
and calcium. Glucose can be made by the body, and glycogen is a storage form of
glucose .

Question 3: Which of the following is NOT a function of nutrients in the body?
A) Provide energy
B) Build and repair tissue
C) Regulate body processes
D) Increase body weight

Correct Answer: D
Rationale: The three functions of nutrients in the body are to provide energy, build
and repair tissue, and regulate body processes. Increasing body weight is an
outcome, not a function of nutrients .

Question 4: What is the Acceptable Macronutrient Distribution Range (AMDR) for
carbohydrates?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-20%

Correct Answer: C
Rationale: The AMDR for carbohydrates is 45-65% of total daily calories.
Carbohydrates provide 4 kcal/g and are the body's preferred energy source .

Question 5: What is the AMDR for fats?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-20%

,Correct Answer: B
Rationale: The AMDR for fats is 20-35% of total daily calories. Lipids serve
multiple functions including long-term energy storage (9 kcal/g), insulation, and
hormone production .

Question 6: What is the AMDR for proteins?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-15%

Correct Answer: A
Rationale: The AMDR for proteins is 10-35% of total daily calories. Proteins
provide 4 kcal/g and are essential for tissue building, repair, and immune function .

Question 7: How many kilocalories are in 1 gram of carbohydrates?
A) 4 kcal
B) 7 kcal
C) 9 kcal
D) 12 kcal

Correct Answer: A
Rationale: Carbohydrates provide 4 kilocalories per gram. Protein also provides 4
kcal/g, fat provides 9 kcal/g, and alcohol provides 7 kcal/g .

Question 8: How many kilocalories are in 1 gram of protein?
A) 4 kcal
B) 7 kcal
C) 9 kcal
D) 12 kcal

Correct Answer: A
Rationale: Protein provides 4 kilocalories per gram. This is the same energy
density as carbohydrates, but proteins play a different primary role in the body —
tissue building and repair rather than energy provision .

Question 9: How many kilocalories are in 1 gram of fat?
A) 4 kcal
B) 7 kcal
C) 9 kcal

, D) 12 kcal

Correct Answer: C
Rationale: Fat provides 9 kilocalories per gram, making it the most energy-dense
macronutrient. This is why high-fat foods are more calorie-dense than
carbohydrate- or protein-rich foods .

Question 10: Which type of fat should be limited according to the Dietary
Guidelines for Americans?
A) Monounsaturated fats
B) Polyunsaturated fats
C) Saturated fats and trans fats
D) Omega-3 fatty acids

Correct Answer: C
Rationale: The Dietary Guidelines for Americans recommend limiting saturated
and trans fats to reduce the risk of cardiovascular disease. Saturated fat should be
limited to less than 10% of total daily calories, and trans fat intake should be as
low as possible .

Question 11: Which of the following is a recommended source of healthy
unsaturated fat?
A) Butter
B) Coconut oil
C) Avocado
D) Lard

Correct Answer: C
Rationale: Avocado is rich in monounsaturated fat, which is considered a heart -
healthy unsaturated fat. Butter, coconut oil, and lard are high in saturated fat,
which can increase LDL cholesterol and cardiovascular risk .

Question 12: An example of a nutrient that is NOT nutrient-dense is:
A) Eggs
B) Brown rice
C) Soda
D) Greek yogurt

Correct Answer: C