TESTBANK FOR WILLIAMS' BASIC NUTRITION & DIET THERAPY — 17TH EDITION
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 1
,TABLE OF CONTENTS
PART I — Introduction to Basic Principles of Nutrition Science
1. Food, Nutrition, and Health
2. Carbohydrates
3. Fats
4. Proteins
5. Digestion, Absorption, and Metabolism
6. Energy Balance
7. Vitamins
8. Minerals
9. Water and Electrolyte Balance
PART II — Nutrition Throughout the Life Cycle
10. Nutrition During Pregnancy and Lactation
11. Nutrition During Infancy, Childhood, and Adolescence
12. Nutrition for Adults: The Early, Middle, and Later Years
PART III — Community Nutrition and Health Care
13. Community Food Supply and Health
14. Weight Management
15. Nutrition and Physical Fitness
PART IV — Clinical Nutrition
16. Nutrition Support
17. Gastrointestinal and Accessory Organ Problems
18. Coronary Heart Disease and Hypertension
19. Diabetes Mellitus
20. Kidney Disease
21. Surgery and Nutrition Support
22. Nutrition Support in Cancer and HIV
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 2
,CHAPTER 1 — FOOD, NUTRITION, AND HEALTH
Section I — Foundations of Nutrition Science
Question 1
Which statement best defines nutrition in relation to human health?
A. The study of food preparation techniques alone.
B. The process of avoiding all foods containing fat.
C. The science of nutrients, food intake, and their effects on body functions and
health.
D. The measurement of body weight without evaluating dietary intake.
Correct Answer: C. The science of nutrients, food intake, and their effects on
body functions and health.
Rationale:
• Nutrition examines how food substances support growth, energy, and
maintenance.
• Nutrient intake influences physiological processes and long-term health.
• Dietary assessment must consider nutritional quality as well as quantity.
• Nutrition care connects scientific principles with individual needs.
Keywords: Nutrition science, nutrients, physiological functions, health.
Nutrition Pearl: Adequate nutrition supports normal body function and helps
reduce nutritional disease risk.
Exam Strategy: Select the broad scientific definition rather than one dietary
behavior.
Question 2
Which group contains only the six major classes of nutrients?
A. Carbohydrates, proteins, fats, vitamins, minerals, and water.
B. Carbohydrates, proteins, enzymes, hormones, minerals, and water.
C. Vitamins, minerals, fiber, enzymes, alcohol, and proteins.
D. Carbohydrates, cholesterol, antioxidants, hormones, water, and oxygen.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 3
,Correct Answer: A. Carbohydrates, proteins, fats, vitamins, minerals, and water.
Rationale:
• Carbohydrates, fats, and proteins are energy-yielding nutrients.
• Vitamins and minerals support numerous regulatory functions.
• Water is essential for transport, temperature control, and chemical
processes.
• Enzymes and hormones have important roles but are not separate major
nutrient classes.
Keywords: Six nutrients, macronutrients, micronutrients, water.
Nutrition Pearl: Water is essential even though it does not supply calories.
Exam Strategy: Recall all six recognized nutrient classes.
Question 3
Which nutrient is most directly involved in supplying the essential amino acids
needed for synthesis of body proteins?
A. Dietary fiber.
B. Vitamin C.
C. Sodium.
D. Protein.
Correct Answer: D. Protein.
Rationale:
• Dietary protein provides amino acids for tissue synthesis and repair.
• Essential amino acids must be supplied through food.
• Proteins also serve as enzymes, transporters, and regulatory molecules.
• Energy intake influences how efficiently protein is used for tissue functions.
Keywords: Protein, essential amino acids, tissue repair.
Nutrition Pearl: Adequate protein quality and total intake both matter for
tissue maintenance.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 4
, Exam Strategy: Match amino acid needs with the nutrient class that supplies
them.
Question 4 — 📊 Visual: Nutrient Energy Table
Energy-yielding substance Energy per gram
Carbohydrate 4 kcal
Protein 4 kcal
Fat 9 kcal
Alcohol 7 kcal
A snack contains 12 g carbohydrate, 5 g protein, and 8 g fat, with no alcohol.
What is its approximate energy content?
A. 104 kcal.
B. 140 kcal.
C. 180 kcal.
D. 204 kcal.
Correct Answer: B. 140 kcal.
Rationale:
• Carbohydrate contributes \(12\times4=48\) kcal.
• Protein contributes \(5\times4=20\) kcal.
• Fat contributes \(8\times9=72\) kcal.
• The combined energy is \(48+20+72=140\) kcal.
Keywords: Macronutrient energy, kilocalories, nutrient calculation.
Nutrition Pearl: Fat supplies more than twice the energy per gram provided by
carbohydrate or protein.
Exam Strategy: Multiply each macronutrient amount by its energy factor
before adding.
Question 5
Why is dietary variety emphasized in healthy eating recommendations?
A. Every food provides every essential nutrient.
B. Variety eliminates all risk of nutrition-related disease.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 5
,C. Different foods provide complementary nutrients and other beneficial dietary
components.
D. A varied diet makes portion size irrelevant.
Correct Answer: C. Different foods provide complementary nutrients and other
beneficial dietary components.
Rationale:
• Foods differ in vitamin, mineral, macronutrient, and fiber content.
• Variety can reduce dependence on a narrow range of nutrient sources.
• Dietary adequacy also depends on portions and total intake.
• A varied dietary pattern should emphasize nutrient-dense selections.
Keywords: Dietary variety, nutrient adequacy, nutrient density.
Nutrition Pearl: Variety is useful when it increases nutritional adequacy rather
than simply increasing food choices.
Exam Strategy: Distinguish variety from unrestricted intake.
Question 6
Which statement most accurately distinguishes macronutrients from
micronutrients?
A. Macronutrients are required in relatively larger amounts, whereas
micronutrients are generally needed in smaller amounts.
B. Macronutrients include only minerals.
C. Micronutrients supply most dietary calories.
D. Water is the only macronutrient.
Correct Answer: A. Macronutrients are required in relatively larger amounts,
whereas micronutrients are generally needed in smaller amounts.
Rationale:
• Macronutrients include carbohydrate, fat, and protein in common dietary
classification.
• Vitamins and minerals are generally considered micronutrients.
• Micronutrients are essential despite their smaller quantitative requirements.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 6
, • Water is also required in substantial amounts but is often discussed
separately.
Keywords: Macronutrients, micronutrients, nutrient requirements.
Nutrition Pearl: A nutrient's importance is not determined by how much of it
the body requires.
Exam Strategy: Focus on required quantity, not whether the nutrient is
essential.
Question 7
Which situation most clearly represents undernutrition?
A. Consuming more energy than the body expends over time.
B. Meeting all nutrient requirements through varied meals.
C. Maintaining adequate intake and stable functional status.
D. Prolonged intake insufficient to meet energy or nutrient requirements.
Correct Answer: D. Prolonged intake insufficient to meet energy or nutrient
requirements.
Rationale:
• Undernutrition involves inadequate energy or nutrient availability.
• It can affect growth, tissue maintenance, and physiological function.
• Clinical findings depend on duration, severity, and underlying conditions.
• Nutritional assessment should identify both intake and clinical consequences.
Keywords: Undernutrition, nutritional deficiency, inadequate intake.
Nutrition Pearl: Undernutrition can occur at different body weights and may
not always be visually obvious.
Exam Strategy: Identify deficiency relative to nutritional requirements.
Question 8
What is the primary purpose of a Dietary Reference Intake (DRI) framework?
A. Prescribing an identical diet for every patient.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 7
,B. Providing reference values for assessing and planning nutrient intake in defined
population groups.
C. Replacing medical nutrition therapy for diagnosed conditions.
D. Establishing the calorie content of every prepared meal.
Correct Answer: B. Providing reference values for assessing and planning nutrient
intake in defined population groups.
Rationale:
• DRIs include reference values used for nutritional assessment and planning.
• Requirements can differ by age, sex, and physiological condition.
• Reference categories have distinct statistical and practical purposes.
• Individual medical circumstances may require additional clinical
interpretation.
Keywords: Dietary Reference Intakes, nutrient requirements, intake planning.
Nutrition Pearl: DRI values are population-based reference tools, not universal
individualized prescriptions.
Exam Strategy: Recognize the framework's purpose rather than confusing it
with a meal plan.
Question 9 — 🔗 Visual: Nutrition Care Process
Nutrition screening
↓
Nutrition assessment
↓
Identify nutrition problems
↓
Plan appropriate intervention
↓
Implement nutrition care
↓
Monitor and evaluate outcomes
↺
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 8
,A patient reports a major decline in food intake over two weeks. Following a
positive nutrition screen, what is the most appropriate next step?
A. Automatically prescribe a highly restrictive diet.
B. Assume the decline has no clinical importance.
C. Perform a comprehensive nutrition assessment or arrange an appropriate
referral.
D. Wait until significant complications develop.
Correct Answer: C. Perform a comprehensive nutrition assessment or arrange an
appropriate referral.
Rationale:
• Screening identifies possible nutritional risk.
• Assessment clarifies intake, weight history, symptoms, and relevant clinical
factors.
• Findings guide appropriate nutrition interventions.
• Follow-up evaluates whether the identified problem improves.
Keywords: Nutrition screening, assessment, nutritional risk.
Nutrition Pearl: Screening identifies who may need further assessment; it does
not establish a complete diagnosis.
Exam Strategy: Follow the decision sequence from risk identification to
assessment.
Question 10
Which statement best describes nutrient density?
A. The concentration of beneficial nutrients relative to a food's energy content.
B. The total physical weight of food regardless of composition.
C. The number of calories in a food without considering nutrients.
D. The amount of water used during cooking.
Correct Answer: A. The concentration of beneficial nutrients relative to a food's
energy content.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 9
,Rationale:
• Nutrient-dense foods provide meaningful amounts of useful nutrients.
• Many fruits, vegetables, legumes, and other foods contribute valuable
nutrients.
• Nutrient density helps compare foods within dietary patterns.
• Overall nutritional value also depends on portions and dietary context.
Keywords: Nutrient density, food quality, healthy dietary patterns.
Nutrition Pearl: A food can be low in calories without necessarily being
nutrient-dense.
Exam Strategy: Look for the relationship between nutrient contribution and
energy.
Section II — Healthy Dietary Patterns and Nutritional Assessment
Question 11
Which statement best describes the relationship between a balanced diet and
long-term health?
A. A balanced diet guarantees complete immunity to chronic disease.
B. Only vitamin supplements are necessary for optimal health.
C. Healthy eating patterns have no relationship to physiological function.
D. A balanced dietary pattern supports nutrient adequacy and can help reduce
certain chronic disease risks.
Correct Answer: D. A balanced dietary pattern supports nutrient adequacy and
can help reduce certain chronic disease risks.
Rationale:
• Dietary patterns influence nutrient availability and metabolic health.
• Health outcomes depend on multiple dietary and nondietary factors.
• Nutritional adequacy involves both sufficient intake and appropriate balance.
• A healthy diet reduces some risks without eliminating them completely.
Keywords: Balanced diet, chronic disease prevention, dietary patterns.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 10
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 1
,TABLE OF CONTENTS
PART I — Introduction to Basic Principles of Nutrition Science
1. Food, Nutrition, and Health
2. Carbohydrates
3. Fats
4. Proteins
5. Digestion, Absorption, and Metabolism
6. Energy Balance
7. Vitamins
8. Minerals
9. Water and Electrolyte Balance
PART II — Nutrition Throughout the Life Cycle
10. Nutrition During Pregnancy and Lactation
11. Nutrition During Infancy, Childhood, and Adolescence
12. Nutrition for Adults: The Early, Middle, and Later Years
PART III — Community Nutrition and Health Care
13. Community Food Supply and Health
14. Weight Management
15. Nutrition and Physical Fitness
PART IV — Clinical Nutrition
16. Nutrition Support
17. Gastrointestinal and Accessory Organ Problems
18. Coronary Heart Disease and Hypertension
19. Diabetes Mellitus
20. Kidney Disease
21. Surgery and Nutrition Support
22. Nutrition Support in Cancer and HIV
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 2
,CHAPTER 1 — FOOD, NUTRITION, AND HEALTH
Section I — Foundations of Nutrition Science
Question 1
Which statement best defines nutrition in relation to human health?
A. The study of food preparation techniques alone.
B. The process of avoiding all foods containing fat.
C. The science of nutrients, food intake, and their effects on body functions and
health.
D. The measurement of body weight without evaluating dietary intake.
Correct Answer: C. The science of nutrients, food intake, and their effects on
body functions and health.
Rationale:
• Nutrition examines how food substances support growth, energy, and
maintenance.
• Nutrient intake influences physiological processes and long-term health.
• Dietary assessment must consider nutritional quality as well as quantity.
• Nutrition care connects scientific principles with individual needs.
Keywords: Nutrition science, nutrients, physiological functions, health.
Nutrition Pearl: Adequate nutrition supports normal body function and helps
reduce nutritional disease risk.
Exam Strategy: Select the broad scientific definition rather than one dietary
behavior.
Question 2
Which group contains only the six major classes of nutrients?
A. Carbohydrates, proteins, fats, vitamins, minerals, and water.
B. Carbohydrates, proteins, enzymes, hormones, minerals, and water.
C. Vitamins, minerals, fiber, enzymes, alcohol, and proteins.
D. Carbohydrates, cholesterol, antioxidants, hormones, water, and oxygen.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 3
,Correct Answer: A. Carbohydrates, proteins, fats, vitamins, minerals, and water.
Rationale:
• Carbohydrates, fats, and proteins are energy-yielding nutrients.
• Vitamins and minerals support numerous regulatory functions.
• Water is essential for transport, temperature control, and chemical
processes.
• Enzymes and hormones have important roles but are not separate major
nutrient classes.
Keywords: Six nutrients, macronutrients, micronutrients, water.
Nutrition Pearl: Water is essential even though it does not supply calories.
Exam Strategy: Recall all six recognized nutrient classes.
Question 3
Which nutrient is most directly involved in supplying the essential amino acids
needed for synthesis of body proteins?
A. Dietary fiber.
B. Vitamin C.
C. Sodium.
D. Protein.
Correct Answer: D. Protein.
Rationale:
• Dietary protein provides amino acids for tissue synthesis and repair.
• Essential amino acids must be supplied through food.
• Proteins also serve as enzymes, transporters, and regulatory molecules.
• Energy intake influences how efficiently protein is used for tissue functions.
Keywords: Protein, essential amino acids, tissue repair.
Nutrition Pearl: Adequate protein quality and total intake both matter for
tissue maintenance.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 4
, Exam Strategy: Match amino acid needs with the nutrient class that supplies
them.
Question 4 — 📊 Visual: Nutrient Energy Table
Energy-yielding substance Energy per gram
Carbohydrate 4 kcal
Protein 4 kcal
Fat 9 kcal
Alcohol 7 kcal
A snack contains 12 g carbohydrate, 5 g protein, and 8 g fat, with no alcohol.
What is its approximate energy content?
A. 104 kcal.
B. 140 kcal.
C. 180 kcal.
D. 204 kcal.
Correct Answer: B. 140 kcal.
Rationale:
• Carbohydrate contributes \(12\times4=48\) kcal.
• Protein contributes \(5\times4=20\) kcal.
• Fat contributes \(8\times9=72\) kcal.
• The combined energy is \(48+20+72=140\) kcal.
Keywords: Macronutrient energy, kilocalories, nutrient calculation.
Nutrition Pearl: Fat supplies more than twice the energy per gram provided by
carbohydrate or protein.
Exam Strategy: Multiply each macronutrient amount by its energy factor
before adding.
Question 5
Why is dietary variety emphasized in healthy eating recommendations?
A. Every food provides every essential nutrient.
B. Variety eliminates all risk of nutrition-related disease.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 5
,C. Different foods provide complementary nutrients and other beneficial dietary
components.
D. A varied diet makes portion size irrelevant.
Correct Answer: C. Different foods provide complementary nutrients and other
beneficial dietary components.
Rationale:
• Foods differ in vitamin, mineral, macronutrient, and fiber content.
• Variety can reduce dependence on a narrow range of nutrient sources.
• Dietary adequacy also depends on portions and total intake.
• A varied dietary pattern should emphasize nutrient-dense selections.
Keywords: Dietary variety, nutrient adequacy, nutrient density.
Nutrition Pearl: Variety is useful when it increases nutritional adequacy rather
than simply increasing food choices.
Exam Strategy: Distinguish variety from unrestricted intake.
Question 6
Which statement most accurately distinguishes macronutrients from
micronutrients?
A. Macronutrients are required in relatively larger amounts, whereas
micronutrients are generally needed in smaller amounts.
B. Macronutrients include only minerals.
C. Micronutrients supply most dietary calories.
D. Water is the only macronutrient.
Correct Answer: A. Macronutrients are required in relatively larger amounts,
whereas micronutrients are generally needed in smaller amounts.
Rationale:
• Macronutrients include carbohydrate, fat, and protein in common dietary
classification.
• Vitamins and minerals are generally considered micronutrients.
• Micronutrients are essential despite their smaller quantitative requirements.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 6
, • Water is also required in substantial amounts but is often discussed
separately.
Keywords: Macronutrients, micronutrients, nutrient requirements.
Nutrition Pearl: A nutrient's importance is not determined by how much of it
the body requires.
Exam Strategy: Focus on required quantity, not whether the nutrient is
essential.
Question 7
Which situation most clearly represents undernutrition?
A. Consuming more energy than the body expends over time.
B. Meeting all nutrient requirements through varied meals.
C. Maintaining adequate intake and stable functional status.
D. Prolonged intake insufficient to meet energy or nutrient requirements.
Correct Answer: D. Prolonged intake insufficient to meet energy or nutrient
requirements.
Rationale:
• Undernutrition involves inadequate energy or nutrient availability.
• It can affect growth, tissue maintenance, and physiological function.
• Clinical findings depend on duration, severity, and underlying conditions.
• Nutritional assessment should identify both intake and clinical consequences.
Keywords: Undernutrition, nutritional deficiency, inadequate intake.
Nutrition Pearl: Undernutrition can occur at different body weights and may
not always be visually obvious.
Exam Strategy: Identify deficiency relative to nutritional requirements.
Question 8
What is the primary purpose of a Dietary Reference Intake (DRI) framework?
A. Prescribing an identical diet for every patient.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 7
,B. Providing reference values for assessing and planning nutrient intake in defined
population groups.
C. Replacing medical nutrition therapy for diagnosed conditions.
D. Establishing the calorie content of every prepared meal.
Correct Answer: B. Providing reference values for assessing and planning nutrient
intake in defined population groups.
Rationale:
• DRIs include reference values used for nutritional assessment and planning.
• Requirements can differ by age, sex, and physiological condition.
• Reference categories have distinct statistical and practical purposes.
• Individual medical circumstances may require additional clinical
interpretation.
Keywords: Dietary Reference Intakes, nutrient requirements, intake planning.
Nutrition Pearl: DRI values are population-based reference tools, not universal
individualized prescriptions.
Exam Strategy: Recognize the framework's purpose rather than confusing it
with a meal plan.
Question 9 — 🔗 Visual: Nutrition Care Process
Nutrition screening
↓
Nutrition assessment
↓
Identify nutrition problems
↓
Plan appropriate intervention
↓
Implement nutrition care
↓
Monitor and evaluate outcomes
↺
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 8
,A patient reports a major decline in food intake over two weeks. Following a
positive nutrition screen, what is the most appropriate next step?
A. Automatically prescribe a highly restrictive diet.
B. Assume the decline has no clinical importance.
C. Perform a comprehensive nutrition assessment or arrange an appropriate
referral.
D. Wait until significant complications develop.
Correct Answer: C. Perform a comprehensive nutrition assessment or arrange an
appropriate referral.
Rationale:
• Screening identifies possible nutritional risk.
• Assessment clarifies intake, weight history, symptoms, and relevant clinical
factors.
• Findings guide appropriate nutrition interventions.
• Follow-up evaluates whether the identified problem improves.
Keywords: Nutrition screening, assessment, nutritional risk.
Nutrition Pearl: Screening identifies who may need further assessment; it does
not establish a complete diagnosis.
Exam Strategy: Follow the decision sequence from risk identification to
assessment.
Question 10
Which statement best describes nutrient density?
A. The concentration of beneficial nutrients relative to a food's energy content.
B. The total physical weight of food regardless of composition.
C. The number of calories in a food without considering nutrients.
D. The amount of water used during cooking.
Correct Answer: A. The concentration of beneficial nutrients relative to a food's
energy content.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 9
,Rationale:
• Nutrient-dense foods provide meaningful amounts of useful nutrients.
• Many fruits, vegetables, legumes, and other foods contribute valuable
nutrients.
• Nutrient density helps compare foods within dietary patterns.
• Overall nutritional value also depends on portions and dietary context.
Keywords: Nutrient density, food quality, healthy dietary patterns.
Nutrition Pearl: A food can be low in calories without necessarily being
nutrient-dense.
Exam Strategy: Look for the relationship between nutrient contribution and
energy.
Section II — Healthy Dietary Patterns and Nutritional Assessment
Question 11
Which statement best describes the relationship between a balanced diet and
long-term health?
A. A balanced diet guarantees complete immunity to chronic disease.
B. Only vitamin supplements are necessary for optimal health.
C. Healthy eating patterns have no relationship to physiological function.
D. A balanced dietary pattern supports nutrient adequacy and can help reduce
certain chronic disease risks.
Correct Answer: D. A balanced dietary pattern supports nutrient adequacy and
can help reduce certain chronic disease risks.
Rationale:
• Dietary patterns influence nutrient availability and metabolic health.
• Health outcomes depend on multiple dietary and nondietary factors.
• Nutritional adequacy involves both sufficient intake and appropriate balance.
• A healthy diet reduces some risks without eliminating them completely.
Keywords: Balanced diet, chronic disease prevention, dietary patterns.
Williams’ Basic Nutrition & Diet Therapy | Original Practice Questions • Page 10
