Page 1 of 139
NDFS 100 – BYU Exam #2 | Nutrition,
Digestion & Metabolism (2025 Updated
Edition) Verified Practice Exam | Correct
Answers Bolded | Includes Rationales |
Graded A+ Study Version
Q1. Which of the following is NOT a macronutrient?
a) Carbohydrate
b) Protein
c) Vitamin C
d) Fat
Answer: c
Rationale: Vitamins and minerals are micronutrients, required in
small amounts. Carbohydrates, proteins, and fats are
macronutrients needed in larger quantities.
,Page 2 of 139
Q2. The Acceptable Macronutrient Distribution Range (AMDR) for
carbohydrates is:
a) 10–20% of total calories
b) 20–35% of total calories
c) 45–65% of total calories
d) 65–75% of total calories
Answer: c
Rationale: The AMDR for carbohydrates is 45–65% of daily
calories. Fat is 20–35%, protein 10–35%.
Q3. Which of the following is an example of an empty-calorie
food?
a) Apple
b) Grilled chicken breast
,Page 3 of 139
c) Soda
d) Brown rice
Answer: c
Rationale: Empty-calorie foods provide energy (calories) but
few or no essential nutrients. Soda is high in added sugar with no
vitamins or minerals.
Q4. The Dietary Guidelines for Americans recommend limiting
added sugars to less than _____ of total daily calories.
a) 5%
b) 10%
c) 15%
d) 20%
Answer: b
Rationale: The 2020-2025 Dietary Guidelines recommend
limiting added sugars to less than 10% of total calories per day.
, Page 4 of 139
Q5. Which MyPlate food group is the primary source of dietary
fiber?
a) Protein
b) Dairy
c) Vegetables
d) Fruits and Vegetables (both)
Answer: d
Rationale: Fruits, vegetables, and whole grains are the main
sources of dietary fiber. Dairy and protein foods provide little
fiber.
Q6. A food label states “Total Fat 12g, Saturated Fat 5g, Trans
Fat 0g, Cholesterol 30mg, Sodium 400mg, Total Carbohydrate
35g, Dietary Fiber 4g, Sugars 12g, Protein 10g.” How many
calories from fat are in one serving?
NDFS 100 – BYU Exam #2 | Nutrition,
Digestion & Metabolism (2025 Updated
Edition) Verified Practice Exam | Correct
Answers Bolded | Includes Rationales |
Graded A+ Study Version
Q1. Which of the following is NOT a macronutrient?
a) Carbohydrate
b) Protein
c) Vitamin C
d) Fat
Answer: c
Rationale: Vitamins and minerals are micronutrients, required in
small amounts. Carbohydrates, proteins, and fats are
macronutrients needed in larger quantities.
,Page 2 of 139
Q2. The Acceptable Macronutrient Distribution Range (AMDR) for
carbohydrates is:
a) 10–20% of total calories
b) 20–35% of total calories
c) 45–65% of total calories
d) 65–75% of total calories
Answer: c
Rationale: The AMDR for carbohydrates is 45–65% of daily
calories. Fat is 20–35%, protein 10–35%.
Q3. Which of the following is an example of an empty-calorie
food?
a) Apple
b) Grilled chicken breast
,Page 3 of 139
c) Soda
d) Brown rice
Answer: c
Rationale: Empty-calorie foods provide energy (calories) but
few or no essential nutrients. Soda is high in added sugar with no
vitamins or minerals.
Q4. The Dietary Guidelines for Americans recommend limiting
added sugars to less than _____ of total daily calories.
a) 5%
b) 10%
c) 15%
d) 20%
Answer: b
Rationale: The 2020-2025 Dietary Guidelines recommend
limiting added sugars to less than 10% of total calories per day.
, Page 4 of 139
Q5. Which MyPlate food group is the primary source of dietary
fiber?
a) Protein
b) Dairy
c) Vegetables
d) Fruits and Vegetables (both)
Answer: d
Rationale: Fruits, vegetables, and whole grains are the main
sources of dietary fiber. Dairy and protein foods provide little
fiber.
Q6. A food label states “Total Fat 12g, Saturated Fat 5g, Trans
Fat 0g, Cholesterol 30mg, Sodium 400mg, Total Carbohydrate
35g, Dietary Fiber 4g, Sugars 12g, Protein 10g.” How many
calories from fat are in one serving?
