Q: A food contains 10 grams of fat, 20 grams of carbohydrate, and 5 grams of protein. How many total calories does this food provide?

$$10 \times 9 + 20 \times 4 + 5 \times 4 = 210$$ calories

Q: A person consumes 60 grams of carbohydrate, 20 grams of protein, and 10 grams of fat in a meal. What percentage of total calories comes from fat? (Use $$4$$ kcal/g for carbohydrate and protein, $$9$$ kcal/g for fat.)

$$\frac{10 \times 9}{(60 \times 4 + 20 \times 4 + 10 \times 9)} \times 100 = 25\%$$

Question 1

Which of the following best describes an essential nutrient?

Accepted Answer

A nutrient that must be obtained from the diet because the body cannot make it or cannot make enough of it.

Question 2

A food contains 10 grams of fat, 20 grams of carbohydrate, and 5 grams of protein. How many total calories does this food provide?

Accepted Answer

$$10 	imes 9 + 20 	imes 4 + 5 	imes 4 = 210$$ calories

Question 3

Which of the following is an example of a micronutrient?

Accepted Answer

Vitamin C

Question 4

Which statement best distinguishes between experimental and epidemiological studies?

Accepted Answer

Experimental studies involve manipulation of variables to test cause and effect, while epidemiological studies observe associations in populations.

Question 5

A nutrition label lists the following ingredients: whole wheat flour, sugar, vegetable oil, salt. Which ingredient is present in the largest amount by weight?

Accepted Answer

Whole wheat flour

Question 6

Which of the following best describes the Acceptable Macronutrient Distribution Range (AMDR) for carbohydrates?

Accepted Answer

45-65% of total calories

Question 7

A patient is experiencing frequent heartburn. Which dietary modification is most likely to help reduce symptoms?

Accepted Answer

Eating smaller, more frequent meals and avoiding trigger foods

Question 8

Which of the following is a function of the gallbladder?

Accepted Answer

Storing and concentrating bile produced by the liver

Question 9

Which of the following best describes nutrient density?

Accepted Answer

The amount of nutrients a food provides relative to the number of calories it contains

Question 10

A food product claims to be 'high in fiber.' According to FDA labeling regulations, what does this mean?

Accepted Answer

It contains at least 20% of the Daily Value for fiber per serving.

Question 11

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

Accepted Answer

Neither the participants nor the researchers know who is receiving the treatment or placebo.

Question 12

Which of the following is an example of an anthropometric measurement in nutrition assessment?

Accepted Answer

Body mass index (BMI)

Question 13

Which of the following nutrients is absorbed directly into the lymphatic system rather than the vascular (blood) system?

Accepted Answer

Long-chain fatty acids

Question 14

A person consumes 60 grams of carbohydrate, 20 grams of protein, and 10 grams of fat in a meal. What percentage of total calories comes from fat? (Use $$4$$ kcal/g for carbohydrate and protein, $$9$$ kcal/g for fat.)

Accepted Answer

$$\frac{10 	imes 9}{(60 	imes 4 + 20 	imes 4 + 10 	imes 9)} 	imes 100 = 25\%$$

Question 15

Which of the following is a key recommendation of the Dietary Guidelines for Americans?

Accepted Answer

Consume less than 10% of calories per day from added sugars.

Question 16

Which of the following best describes the function of villi in the small intestine?

Accepted Answer

They increase the surface area for nutrient absorption.

Question 17

Which of the following is a reliable tip for evaluating nutrition information on a website?

Accepted Answer

Check if the site is selling a product related to the information.

Question 18

Which of the following best describes a probiotic?

Accepted Answer

A live microorganism that, when consumed in adequate amounts, confers a health benefit.

Question 19

Which of the following statements about enriched, fortified, and whole grains is correct?

Accepted Answer

Fortified grains have nutrients added that were not originally present.

Question 20

A person is following a diet that emphasizes variety, balance, and moderation. Which principle of healthy eating is this person practicing?

Accepted Answer

Key principles of healthy eating

NFS 2323 Exam 1 Study Guide – Step-by-Step Guidance for Nutrition Concepts

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