WGU D440 Nutrition OA Exam Study Guides
(2026/2027) | Victoria, Kareem & Stephanie Guide |
Guarantee Pass
250 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Macronutrients
2 Micronutrients
3 Energy Balance
4 Lifespan Nutrition
5 Therapeutic Diets
6 Nutritional Assessment
7 Food Safety
8 Enteral & Parenteral Nutrition
9 Clinical Nutrition
10 Cultural & Psychosocial
,Q1
Which macronutrient provides the most energy per gram?
A) Carbohydrate
B) Protein
C) Fat CORRECT
D) Alcohol
Rationale
Fat provides 9 kcal/g, protein and carbohydrate 4 kcal/g, alcohol 7 kcal/g.
Q2
A client on a clear liquid diet can have which of the following?
A) Milk
B) Apple juice CORRECT
C) Oatmeal
D) Yogurt
Rationale
Clear liquids are transparent at room temperature: broth, gelatin, juice, tea.
Q3
Which vitamin is fat-soluble?
A) Vitamin C
B) Vitamin D CORRECT
C) Vitamin B12
D) Folate
2
,Rationale
Fat-soluble vitamins: A, D, E, K. Water-soluble: B complex and C.
Q4
A client with hypertension should limit which mineral?
A) Potassium
B) Calcium
C) Sodium CORRECT
D) Magnesium
Rationale
Sodium restriction reduces blood pressure; DASH diet emphasizes low sodium.
Q5
Which food is the best source of iron?
A) Milk
B) Lean red meat CORRECT
C) White bread
D) Apple
Rationale
Heme iron from animal sources is best absorbed; non-heme iron from plants is less absorbed.
Q6
A vegan client is at risk for deficiency of which vitamin?
A) Vitamin C
B) Vitamin B12 CORRECT
3
, C) Folate
D) Vitamin K
Rationale
B12 is found almost exclusively in animal products; vegans need fortified foods or supplements.
Q7
Which statement about breastfeeding is correct?
A) It provides no immune benefits.
B) It provides passive immunity via IgA. CORRECT
C) It should be avoided for preterm infants.
D) It requires formula supplementation in all cases.
Rationale
Breast milk contains secretory IgA and other immune factors.
Q8
A client with chronic kidney disease should limit which nutrient?
A) Carbohydrate
B) Phosphorus CORRECT
C) Vitamin C
D) Fiber
Rationale
CKD causes phosphorus retention; limit dairy, cola, processed foods.
4
(2026/2027) | Victoria, Kareem & Stephanie Guide |
Guarantee Pass
250 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Macronutrients
2 Micronutrients
3 Energy Balance
4 Lifespan Nutrition
5 Therapeutic Diets
6 Nutritional Assessment
7 Food Safety
8 Enteral & Parenteral Nutrition
9 Clinical Nutrition
10 Cultural & Psychosocial
,Q1
Which macronutrient provides the most energy per gram?
A) Carbohydrate
B) Protein
C) Fat CORRECT
D) Alcohol
Rationale
Fat provides 9 kcal/g, protein and carbohydrate 4 kcal/g, alcohol 7 kcal/g.
Q2
A client on a clear liquid diet can have which of the following?
A) Milk
B) Apple juice CORRECT
C) Oatmeal
D) Yogurt
Rationale
Clear liquids are transparent at room temperature: broth, gelatin, juice, tea.
Q3
Which vitamin is fat-soluble?
A) Vitamin C
B) Vitamin D CORRECT
C) Vitamin B12
D) Folate
2
,Rationale
Fat-soluble vitamins: A, D, E, K. Water-soluble: B complex and C.
Q4
A client with hypertension should limit which mineral?
A) Potassium
B) Calcium
C) Sodium CORRECT
D) Magnesium
Rationale
Sodium restriction reduces blood pressure; DASH diet emphasizes low sodium.
Q5
Which food is the best source of iron?
A) Milk
B) Lean red meat CORRECT
C) White bread
D) Apple
Rationale
Heme iron from animal sources is best absorbed; non-heme iron from plants is less absorbed.
Q6
A vegan client is at risk for deficiency of which vitamin?
A) Vitamin C
B) Vitamin B12 CORRECT
3
, C) Folate
D) Vitamin K
Rationale
B12 is found almost exclusively in animal products; vegans need fortified foods or supplements.
Q7
Which statement about breastfeeding is correct?
A) It provides no immune benefits.
B) It provides passive immunity via IgA. CORRECT
C) It should be avoided for preterm infants.
D) It requires formula supplementation in all cases.
Rationale
Breast milk contains secretory IgA and other immune factors.
Q8
A client with chronic kidney disease should limit which nutrient?
A) Carbohydrate
B) Phosphorus CORRECT
C) Vitamin C
D) Fiber
Rationale
CKD causes phosphorus retention; limit dairy, cola, processed foods.
4
