WGU D440 Nutrition Objective Assessment
Final Exam and Practice Exam – Actual
Exam 2025 with 300 Verified Questions and
Correct Answers (Graded A+)
Section 1: Nutrients and Dietary Guidelines (Questions 1-50)
1. Question: What is the recommended daily limit for added sugars according to dietary
guidelines? Answer: Less than 10% of total daily calories. Rationale: AHA/DGA limit
added sugars to <10% calories to reduce obesity/diabetes risk; e.g., <50g on 2,000 kcal
diet (McPhee Ch. 15).
2. Question: What is a primary function of dietary fats? Answer: To provide insulation and
protect organs. Rationale: Fats cushion organs and maintain body temp; also energy-
dense at 9 kcal/g (McPhee Ch. 15).
3. Question: Which nutrient deficiency can cause anemia? Answer: Iron. Rationale: Iron is
key for hemoglobin; deficiency leads to microcytic anemia, common in women/vegans
(DRI: 18mg women, 8mg men).
4. Question: What percent of daily calories are recommended for fats? Answer: 20-35%.
Rationale: DGA recommends 20-35% from healthy fats (unsaturated); <10% saturated to
prevent CVD.
5. Question: What percent of daily calories are recommended for proteins? Answer: 10-
35%. Rationale: RDA 0.8g/kg body weight; 10-35% calories supports muscle repair
without excess (DRI).
,6. Question: What are essential nutrients? Answer: Substances the body cannot synthesize
adequately. Rationale: Must come from diet; e.g., essential amino acids, omega-3s,
vitamins (McPhee Ch. 15).
7. Question: What are signs of good nutrition? Answer: Smooth skin, clear/bright eyes,
resistance to infection. Rationale: Indicators of adequate vitamins/minerals; e.g., vit A
for skin/eyes, vit C for immunity.
8. Question: What is the energy yield of fats per gram? Answer: 9 kcal/g. Rationale:
Highest energy density; carbs/protein 4 kcal/g (basic metabolism).
9. Question: What are non-energy yielding nutrients? Answer: Vitamins, minerals, water.
Rationale: Regulate body functions; no calories but essential (DRI standards).
10. Question: What is MyPlate? Answer: Half fruits/vegetables, rest grains/protein, fat-free
milk. Rationale: USDA visual guide for balanced meals; promotes variety.
11. Question: Where are carbohydrates stored? Answer: In liver and muscle tissue, 4 kcal
primary fuel. Rationale: Glycogen form; depleted in 24-48 hrs fasting.
12. Question: What is trans fat? Answer: Partially hydrogenated oils, should be avoided.
Rationale: Increases LDL, heart disease risk; FDA ban phased out.
13. Question: No vegetables results in deficiency of what? Answer: Vitamin K. Rationale:
Leafy greens source; needed for clotting.
14. Question: Convert kcal to joules? Answer: Multiply by 4.184. Rationale: SI unit; 1 kcal
= 4.184 kJ.
, 15. Question: End product of energy-yielding foods? Answer: ATP. Rationale: From
carbs/fats/proteins via metabolism.
16. Question: What is BMI for underweight? Answer: <18.5. Rationale: WHO
classification; risk for malnutrition.
17. Question: Normal BMI range? Answer: 18.5-24.9. Rationale: Healthy weight; calculate
wt(kg)/ht(m)^2.
18. Question: Overweight BMI? Answer: 25-29.9. Rationale: Increased CVD risk.
19. Question: Obese BMI? Answer: ≥30. Rationale: High chronic disease risk.
20. Question: 1 oz = how many mL? Answer: 30 mL. Rationale: Standard conversion for
fluids.
21. Question: 1 cup = how many oz? Answer: 8 oz. Rationale: Volume measure.
22. Question: 1 cup = how many mL? Answer: 240 mL. Rationale: Dietary standard.
23. Question: 1 glass = how many oz? Answer: 6 oz. Rationale: Common serving.
24. Question: Fluid balance calculation? Answer: Intake (I) - Output (O). Rationale:
Monitors hydration.
Final Exam and Practice Exam – Actual
Exam 2025 with 300 Verified Questions and
Correct Answers (Graded A+)
Section 1: Nutrients and Dietary Guidelines (Questions 1-50)
1. Question: What is the recommended daily limit for added sugars according to dietary
guidelines? Answer: Less than 10% of total daily calories. Rationale: AHA/DGA limit
added sugars to <10% calories to reduce obesity/diabetes risk; e.g., <50g on 2,000 kcal
diet (McPhee Ch. 15).
2. Question: What is a primary function of dietary fats? Answer: To provide insulation and
protect organs. Rationale: Fats cushion organs and maintain body temp; also energy-
dense at 9 kcal/g (McPhee Ch. 15).
3. Question: Which nutrient deficiency can cause anemia? Answer: Iron. Rationale: Iron is
key for hemoglobin; deficiency leads to microcytic anemia, common in women/vegans
(DRI: 18mg women, 8mg men).
4. Question: What percent of daily calories are recommended for fats? Answer: 20-35%.
Rationale: DGA recommends 20-35% from healthy fats (unsaturated); <10% saturated to
prevent CVD.
5. Question: What percent of daily calories are recommended for proteins? Answer: 10-
35%. Rationale: RDA 0.8g/kg body weight; 10-35% calories supports muscle repair
without excess (DRI).
,6. Question: What are essential nutrients? Answer: Substances the body cannot synthesize
adequately. Rationale: Must come from diet; e.g., essential amino acids, omega-3s,
vitamins (McPhee Ch. 15).
7. Question: What are signs of good nutrition? Answer: Smooth skin, clear/bright eyes,
resistance to infection. Rationale: Indicators of adequate vitamins/minerals; e.g., vit A
for skin/eyes, vit C for immunity.
8. Question: What is the energy yield of fats per gram? Answer: 9 kcal/g. Rationale:
Highest energy density; carbs/protein 4 kcal/g (basic metabolism).
9. Question: What are non-energy yielding nutrients? Answer: Vitamins, minerals, water.
Rationale: Regulate body functions; no calories but essential (DRI standards).
10. Question: What is MyPlate? Answer: Half fruits/vegetables, rest grains/protein, fat-free
milk. Rationale: USDA visual guide for balanced meals; promotes variety.
11. Question: Where are carbohydrates stored? Answer: In liver and muscle tissue, 4 kcal
primary fuel. Rationale: Glycogen form; depleted in 24-48 hrs fasting.
12. Question: What is trans fat? Answer: Partially hydrogenated oils, should be avoided.
Rationale: Increases LDL, heart disease risk; FDA ban phased out.
13. Question: No vegetables results in deficiency of what? Answer: Vitamin K. Rationale:
Leafy greens source; needed for clotting.
14. Question: Convert kcal to joules? Answer: Multiply by 4.184. Rationale: SI unit; 1 kcal
= 4.184 kJ.
, 15. Question: End product of energy-yielding foods? Answer: ATP. Rationale: From
carbs/fats/proteins via metabolism.
16. Question: What is BMI for underweight? Answer: <18.5. Rationale: WHO
classification; risk for malnutrition.
17. Question: Normal BMI range? Answer: 18.5-24.9. Rationale: Healthy weight; calculate
wt(kg)/ht(m)^2.
18. Question: Overweight BMI? Answer: 25-29.9. Rationale: Increased CVD risk.
19. Question: Obese BMI? Answer: ≥30. Rationale: High chronic disease risk.
20. Question: 1 oz = how many mL? Answer: 30 mL. Rationale: Standard conversion for
fluids.
21. Question: 1 cup = how many oz? Answer: 8 oz. Rationale: Volume measure.
22. Question: 1 cup = how many mL? Answer: 240 mL. Rationale: Dietary standard.
23. Question: 1 glass = how many oz? Answer: 6 oz. Rationale: Common serving.
24. Question: Fluid balance calculation? Answer: Intake (I) - Output (O). Rationale:
Monitors hydration.
