WGU | D440
OBJECTIVE ASSESSMENT - EXAM
WGU D440 HESI Nutrition Objective
Assessment V2, Questions &
Answers (Verified Answers) With
Expert Explanations | 2026 - 2027
Update (PDF)
Certification Exam | Nutrition Science & Clinical Practice
100 100%
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Macronutrient Metabolism and Energy Balance Medical Nutrition Therapy for Chronic Disease
Micronutrient Functions and Deficiency States Community Nutrition Programs and Health Promotion
Nutrition Across the Lifespan (Prenatal to Geriatric) Food Safety, Sanitation, and Regulatory Standards
COVER PAGE - 1
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 1 of 55
,ent Metabolism | Q1-Q20 | WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answer
Q1 Question 1 of 100
A 34-year-old marathon runner consumes 3,200 kcal daily with a diet composed of 55%
carbohydrate, 20% protein, and 25% fat. During a long training run, she experiences sudden
fatigue and lightheadedness. Which nutrient is most likely depleted first in this scenario?
A. Glycogen stores in skeletal muscle
B. Adipose tissue triglycerides
C. Plasma amino acid pool
D. Hepatic ketone bodies
Correct Answer: A
Rationale:
During prolonged aerobic exercise, skeletal muscle glycogen is the primary fuel source and becomes depleted
before fat oxidation can fully compensate. Triglycerides require more oxygen and time to mobilize. The plasma
amino acid pool and ketone bodies are not primary energy sources during moderate-intensity endurance activity.
Q2 Question 2 of 100
A 28-year-old male bodybuilder is trying to maximize muscle protein synthesis after
resistance training. He weighs 80 kg and currently consumes 1.2 g protein per kg body
weight daily. Based on current sports nutrition evidence, what is the most appropriate
adjustment to his protein intake?
A. Increase to 1.6-2.2 g/kg to support hypertrophy and recovery
B. Decrease to 0.8 g/kg to prevent renal stress
C. Maintain at 1.2 g/kg since it already exceeds the RDA
D. Increase to 3.5 g/kg for maximal anabolic response
Correct Answer: A
Rationale:
The Academy of Nutrition and Dietetics and ACSM recommend 1.6-2.2 g/kg for athletes seeking muscle
hypertrophy. While 1.2 g/kg exceeds the general RDA (0.8 g/kg), it is insufficient for optimal muscle protein
synthesis in resistance-trained individuals. Exceeding 2.2 g/kg offers diminishing returns and may cause
gastrointestinal distress.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 2 of 55
, Q3 Question 3 of 100
A 45-year-old woman with a family history of cardiovascular disease switches from a diet
high in saturated fat to one rich in monounsaturated fatty acids. Which lipid parameter is
most likely to improve as a direct result of this dietary change?
A. LDL cholesterol concentration
B. HDL cholesterol concentration
C. Total triglyceride level
D. Lipoprotein(a) concentration
Correct Answer: A
Rationale:
Replacing saturated fats with monounsaturated fats (e.g., olive oil, avocado) consistently lowers LDL cholesterol,
a major CVD risk factor. HDL may increase slightly but the most robust evidence supports LDL reduction.
Triglycerides are more responsive to carbohydrate intake and overall caloric balance. Lipoprotein(a) is largely
genetically determined and minimally affected by diet.
Q4 Question 4 of 100
A registered dietitian is counseling a patient with type 2 diabetes about carbohydrate
counting. The patient asks why 15 grams of carbohydrate from an apple affects blood
glucose differently than 15 grams from a glass of apple juice. Which concept best explains
this difference?
A. The glycemic index and fiber content of whole fruit slow gastric emptying and glucose absorption
B. The apple contains more fructose, which bypasses insulin-dependent glucose uptake
C. Juice has a higher osmolarity, causing rapid intestinal water secretion
D. Whole fruit contains less total carbohydrate per gram than juice
Correct Answer: A
Rationale:
The glycemic index (GI) measures how quickly a carbohydrate-containing food raises blood glucose. Whole
apples have a lower GI than apple juice due to fiber, which slows gastric emptying and glucose absorption. While
fructose metabolism differs from glucose, both the apple and juice contain similar fructose proportions. Osmolarity
differences are clinically irrelevant in this context.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 3 of 55
, Q5 Question 5 of 100
A 52-year-old postmenopausal woman is concerned about bone density loss. Her calcium
intake averages 600 mg daily, primarily from dairy. Which recommendation aligns best with
the Institute of Medicine's guidelines for this population?
A. Increase calcium intake to 1,200 mg daily through food and supplements if needed
B. Maintain 600 mg since postmenopausal women absorb calcium more efficiently
C. Increase to 2,000 mg daily to maximize bone mineral density gains
D. Switch to plant-based calcium sources exclusively for better bioavailability
Correct Answer: A
Rationale:
The IOM recommends 1,200 mg/day of calcium for women over 50 to mitigate postmenopausal bone loss. While
600 mg exceeds the general adult RDA (1,000 mg), it falls short for this demographic. Exceeding 2,000 mg
increases kidney stone and cardiovascular risk without additional skeletal benefit. Dairy and fortified foods remain
highly bioavailable calcium sources.
Q6 Question 6 of 100
A critically ill patient in the ICU has been NPO for 5 days and is now receiving parenteral
nutrition. The clinical team notices elevated triglycerides and impaired immune function.
Which essential fatty acid deficiency is most likely developing?
A. Linoleic acid (omega-6) deficiency
B. Alpha-linolenic acid (omega-3) deficiency
C. Arachidonic acid deficiency
D. Docosahexaenoic acid (DHA) deficiency
Correct Answer: A
Rationale:
Linoleic acid (18:2n-6) is an essential fatty acid that cannot be synthesized endogenously. Prolonged fat-free
parenteral nutrition causes deficiency, manifesting as dermatitis, impaired wound healing, elevated triglycerides
due to altered lipoprotein metabolism, and immune dysfunction. While omega-3s are important, linoleic acid
deficiency develops first and most critically in fat-free states.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 4 of 55
OBJECTIVE ASSESSMENT - EXAM
WGU D440 HESI Nutrition Objective
Assessment V2, Questions &
Answers (Verified Answers) With
Expert Explanations | 2026 - 2027
Update (PDF)
Certification Exam | Nutrition Science & Clinical Practice
100 100%
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Macronutrient Metabolism and Energy Balance Medical Nutrition Therapy for Chronic Disease
Micronutrient Functions and Deficiency States Community Nutrition Programs and Health Promotion
Nutrition Across the Lifespan (Prenatal to Geriatric) Food Safety, Sanitation, and Regulatory Standards
COVER PAGE - 1
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 1 of 55
,ent Metabolism | Q1-Q20 | WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answer
Q1 Question 1 of 100
A 34-year-old marathon runner consumes 3,200 kcal daily with a diet composed of 55%
carbohydrate, 20% protein, and 25% fat. During a long training run, she experiences sudden
fatigue and lightheadedness. Which nutrient is most likely depleted first in this scenario?
A. Glycogen stores in skeletal muscle
B. Adipose tissue triglycerides
C. Plasma amino acid pool
D. Hepatic ketone bodies
Correct Answer: A
Rationale:
During prolonged aerobic exercise, skeletal muscle glycogen is the primary fuel source and becomes depleted
before fat oxidation can fully compensate. Triglycerides require more oxygen and time to mobilize. The plasma
amino acid pool and ketone bodies are not primary energy sources during moderate-intensity endurance activity.
Q2 Question 2 of 100
A 28-year-old male bodybuilder is trying to maximize muscle protein synthesis after
resistance training. He weighs 80 kg and currently consumes 1.2 g protein per kg body
weight daily. Based on current sports nutrition evidence, what is the most appropriate
adjustment to his protein intake?
A. Increase to 1.6-2.2 g/kg to support hypertrophy and recovery
B. Decrease to 0.8 g/kg to prevent renal stress
C. Maintain at 1.2 g/kg since it already exceeds the RDA
D. Increase to 3.5 g/kg for maximal anabolic response
Correct Answer: A
Rationale:
The Academy of Nutrition and Dietetics and ACSM recommend 1.6-2.2 g/kg for athletes seeking muscle
hypertrophy. While 1.2 g/kg exceeds the general RDA (0.8 g/kg), it is insufficient for optimal muscle protein
synthesis in resistance-trained individuals. Exceeding 2.2 g/kg offers diminishing returns and may cause
gastrointestinal distress.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 2 of 55
, Q3 Question 3 of 100
A 45-year-old woman with a family history of cardiovascular disease switches from a diet
high in saturated fat to one rich in monounsaturated fatty acids. Which lipid parameter is
most likely to improve as a direct result of this dietary change?
A. LDL cholesterol concentration
B. HDL cholesterol concentration
C. Total triglyceride level
D. Lipoprotein(a) concentration
Correct Answer: A
Rationale:
Replacing saturated fats with monounsaturated fats (e.g., olive oil, avocado) consistently lowers LDL cholesterol,
a major CVD risk factor. HDL may increase slightly but the most robust evidence supports LDL reduction.
Triglycerides are more responsive to carbohydrate intake and overall caloric balance. Lipoprotein(a) is largely
genetically determined and minimally affected by diet.
Q4 Question 4 of 100
A registered dietitian is counseling a patient with type 2 diabetes about carbohydrate
counting. The patient asks why 15 grams of carbohydrate from an apple affects blood
glucose differently than 15 grams from a glass of apple juice. Which concept best explains
this difference?
A. The glycemic index and fiber content of whole fruit slow gastric emptying and glucose absorption
B. The apple contains more fructose, which bypasses insulin-dependent glucose uptake
C. Juice has a higher osmolarity, causing rapid intestinal water secretion
D. Whole fruit contains less total carbohydrate per gram than juice
Correct Answer: A
Rationale:
The glycemic index (GI) measures how quickly a carbohydrate-containing food raises blood glucose. Whole
apples have a lower GI than apple juice due to fiber, which slows gastric emptying and glucose absorption. While
fructose metabolism differs from glucose, both the apple and juice contain similar fructose proportions. Osmolarity
differences are clinically irrelevant in this context.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 3 of 55
, Q5 Question 5 of 100
A 52-year-old postmenopausal woman is concerned about bone density loss. Her calcium
intake averages 600 mg daily, primarily from dairy. Which recommendation aligns best with
the Institute of Medicine's guidelines for this population?
A. Increase calcium intake to 1,200 mg daily through food and supplements if needed
B. Maintain 600 mg since postmenopausal women absorb calcium more efficiently
C. Increase to 2,000 mg daily to maximize bone mineral density gains
D. Switch to plant-based calcium sources exclusively for better bioavailability
Correct Answer: A
Rationale:
The IOM recommends 1,200 mg/day of calcium for women over 50 to mitigate postmenopausal bone loss. While
600 mg exceeds the general adult RDA (1,000 mg), it falls short for this demographic. Exceeding 2,000 mg
increases kidney stone and cardiovascular risk without additional skeletal benefit. Dairy and fortified foods remain
highly bioavailable calcium sources.
Q6 Question 6 of 100
A critically ill patient in the ICU has been NPO for 5 days and is now receiving parenteral
nutrition. The clinical team notices elevated triglycerides and impaired immune function.
Which essential fatty acid deficiency is most likely developing?
A. Linoleic acid (omega-6) deficiency
B. Alpha-linolenic acid (omega-3) deficiency
C. Arachidonic acid deficiency
D. Docosahexaenoic acid (DHA) deficiency
Correct Answer: A
Rationale:
Linoleic acid (18:2n-6) is an essential fatty acid that cannot be synthesized endogenously. Prolonged fat-free
parenteral nutrition causes deficiency, manifesting as dermatitis, impaired wound healing, elevated triglycerides
due to altered lipoprotein metabolism, and immune dysfunction. While omega-3s are important, linoleic acid
deficiency develops first and most critically in fat-free states.
WGU D440 HESI Nutrition Objective Assessment V2, Questions & Answers (Verified Answers) With Expert Explanations | 2026/2027 | Passing Score: 80% | Page 4 of 55
