$$10 \times 4 + 5 \times 9 + 20 \times 4 = 40 + 45 + 80 = 165$$ kcal

Question 1

Which of the following is NOT a factor that commonly influences food choices in the United States?

Accepted Answer

Genetic modification of food

Question 2

Which statement best defines the term 'nutrition'?

Accepted Answer

The science that studies how nutrients and compounds in foods nourish you, help you function, and affect body functions and health.

Question 3

Which of the following is an essential macronutrient that provides 9 kcal per gram?

Accepted Answer

Lipids (fats)

Question 4

A food contains 10 grams of protein, 5 grams of fat, and 20 grams of carbohydrate. What is the total energy content in kilocalories?

Accepted Answer

$$10 	imes 4 + 5 	imes 9 + 20 	imes 4 = 40 + 45 + 80 = 165$$ kcal

Question 5

Which of the following is a micronutrient essential for metabolism and often acts as a coenzyme?

Accepted Answer

Vitamin B

Question 6

Which of the following statements about water is TRUE?

Accepted Answer

Water is needed in copious amounts daily and helps maintain body temperature.

Question 7

Which of the following is a nonnutritive compound in plant foods that may help fight chronic diseases?

Accepted Answer

Phytochemicals

Question 8

A well-balanced diet should include which of the following?

Accepted Answer

Essential nutrients from all six classes, plus fiber and phytochemicals

Question 9

Which population group in the United States is most likely to experience both obesity and malnutrition due to food insecurity?

Accepted Answer

Children living near or below the poverty level

Question 10

Which of the following is a reliable source of nutrition information?

Accepted Answer

A peer-reviewed journal article

Question 11

Which of the following is a red flag indicating possible nutrition quackery or fraud?

Accepted Answer

Claims of a quick fix for health problems

Question 12

Which of the following best describes the scientific method as used in nutrition research?

Accepted Answer

Formulate a hypothesis, conduct an experiment, and share findings in a peer-reviewed journal

Question 13

Which of the following is a characteristic of a double-blind placebo-controlled experiment?

Accepted Answer

Neither scientists nor subjects know which group receives the treatment

Question 14

Which of the following professionals is most qualified to provide medical nutrition therapy?

Accepted Answer

Registered dietitian nutritionist (RDN)

Question 15

Which equation correctly calculates the energy provided by a food containing 8g carbohydrate, 3g fat, and 2g protein?

Accepted Answer

$$8 	imes 4 + 3 	imes 9 + 2 	imes 4 = 32 + 27 + 8 = 67$$ kcal

Question 16

Which of the following is a common misconception about dietary supplements?

Accepted Answer

Supplements can replace a well-balanced diet for most people

Question 17

Which of the following is a key objective of Healthy People 2030?

Accepted Answer

Promote healthy development and behaviors across all life stages

Question 18

Which of the following is TRUE regarding the average American diet?

Accepted Answer

It often lacks vitamin D, calcium, potassium, and fiber

Question 19

Which of the following is a plausible reason for the paradox of being both obese and malnourished among food-insecure Americans?

Accepted Answer

Limited access to supermarkets and reliance on convenience stores

Question 20

Which of the following is NOT a recommended step when evaluating nutrition news before making dietary changes?

Accepted Answer

Immediately change your diet based on a single study

Introduction to Nutrition: Key Concepts and Influences

Study Guide - Practice Questions