Q: A food contains 10 grams of carbohydrate, 5 grams of protein, and 8 grams of fat. How many total kilocalories does it provide?

$$ (10 \times 4) + (5 \times 4) + (8 \times 9) = 40 + 20 + 72 = 132 $$ kilocalories

Question 1

Which of the following best defines 'nutrition' as described in the study materials?

Accepted Answer

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

Question 2

Which of the following is NOT one of the six classes of essential nutrients?

Accepted Answer

Phytochemicals

Question 3

A food contains 10 grams of carbohydrate, 5 grams of protein, and 8 grams of fat. How many total kilocalories does it provide?

Accepted Answer

$$ (10 	imes 4) + (5 	imes 4) + (8 	imes 9) = 40 + 20 + 72 = 132 $$ kilocalories

Question 4

Which of the following statements about macronutrients is correct?

Accepted Answer

Carbohydrates and proteins provide $$4$$ kcal/gram, while fats provide $$9$$ kcal/gram.

Question 5

Which of the following is a function of water in the human body?

Accepted Answer

Helps maintain body temperature and acts as a lubricant for joints.

Question 6

A person is following a diet high in added sugars, sodium, and saturated fat, but low in fiber, vitamin D, and potassium. According to the study materials, which statement best describes this diet?

Accepted Answer

It reflects common shortcomings of the average American diet.

Question 7

Which of the following is a key difference between vitamins and minerals?

Accepted Answer

Vitamins are organic compounds, while minerals are inorganic substances.

Question 8

Which of the following scenarios best illustrates the concept of 'malnourished' as discussed in the materials?

Accepted Answer

A person who is obese but also deficient in key nutrients such as iron and vitamin D.

Question 9

Which of the following is a red flag for nutrition quackery and fraud?

Accepted Answer

Claims that a product causes miraculous cures.

Question 10

Which of the following best describes the scientific method as it applies to nutrition research?

Accepted Answer

A process involving observation, hypothesis formulation, experimentation, and peer-reviewed publication.

Question 11

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

Accepted Answer

Neither the scientists nor the subjects know which group is receiving the treatment.

Question 12

Which of the following is a reliable source of nutrition information according to the study materials?

Accepted Answer

A registered dietitian nutritionist (RDN) who has completed accredited education and passed a national exam.

Question 13

Which of the following is an example of a micronutrient?

Accepted Answer

Vitamin C

Question 14

Which of the following is a function of proteins in the body, aside from providing energy?

Accepted Answer

Growth and maintenance of muscle, tissues, and organs.

Question 15

A nutrition study finds a correlation between high sun exposure and low rates of rickets in a population. What type of research is this?

Accepted Answer

Epidemiological (observational) research

Question 16

Which of the following is a reason why Americans living near or below the poverty level may have higher rates of obesity?

Accepted Answer

Limited access to supermarkets and reliance on convenience stores and fast-food restaurants.

Question 17

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

Accepted Answer

Attain healthy, thriving lives and well-being free of preventable disease, disability, injury, and premature death.

Question 18

Which of the following best describes the role of fiber in the diet?

Accepted Answer

It is the portion of plant foods that isn't digested in the small intestine and helps fight some diseases.

Question 19

Which of the following is a recommended step when evaluating nutrition news before making dietary changes?

Accepted Answer

Check if the research was published in a peer-reviewed journal.

Question 20

A pregnant woman is advised to take an iron supplement. According to the study materials, why might supplementation be necessary in this case?

Accepted Answer

Her nutrient needs are higher and may not be met through diet alone.

Introduction to Nutrition: Key Concepts and Foundations

Guida di studio - Domande di pratica

Study guide - Flashcard