Q: A food label lists the following per serving: 10g fat, 25g carbohydrate, and 5g protein. If the package contains 4 servings, how many total calories are in the entire package? Use the following caloric values: fat = 9 kcal/g, carbohydrate = 4 kcal/g, protein = 4 kcal/g.

$$ (10 \times 9 + 25 \times 4 + 5 \times 4) \times 4 = 560 $$ calories

Question 1

A food label lists the following per serving: 10g fat, 25g carbohydrate, and 5g protein. If the package contains 4 servings, how many total calories are in the entire package? Use the following caloric values: fat = 9 kcal/g, carbohydrate = 4 kcal/g, protein = 4 kcal/g.

Accepted Answer

$$ (10 	imes 9 + 25 	imes 4 + 5 	imes 4) 	imes 4 = 560 $$ calories

Question 2

Which of the following statements about the ingredient list on a food label is correct?

Accepted Answer

Ingredients are listed in descending order by weight.

Question 3

A product is labeled as 'Low Sodium.' According to FDA guidelines, what does this mean?

Accepted Answer

It contains 140 mg or less sodium per serving.

Question 4

The % Daily Values on a food label are based on a ________-calorie diet.

Accepted Answer

2,000

Question 5

Which of the following vitamins is most likely to lead to toxicity if consumed in excess, and why?

Accepted Answer

Vitamin A, because it is fat-soluble and stored in the body.

Question 6

Which mineral is the most abundant in the human body?

Accepted Answer

Calcium

Question 7

A vegetarian is at increased risk for deficiency of which vitamin, and why?

Accepted Answer

Vitamin B12, because it is primarily found in animal products.

Question 8

Which of the following is NOT an electrolyte?

Accepted Answer

Iron

Question 9

Which of the following foods is a good source of Omega-3 fatty acids?

Accepted Answer

Salmon

Question 10

Which of the following best describes bioavailability?

Accepted Answer

The proportion of a nutrient that is absorbed and used by the body.

Question 11

According to MyPlate, which of the following is true?

Accepted Answer

Fruits and vegetables should make up half of your plate.

Question 12

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

Accepted Answer

Phytonutrients

Question 13

What is the minimum DRI for carbohydrates for adults, and why is this amount recommended?

Accepted Answer

$$ 130 $$ grams per day, to provide adequate glucose for brain function.

Question 14

Which of the following is a characteristic of a healthy diet?

Accepted Answer

Variety, balance, adequacy, and moderation.

Question 15

Which of the following best describes the structure of a saturated fatty acid?

Accepted Answer

No double bonds between carbon atoms; solid at room temperature.

Question 16

Which macronutrient is the body's preferred energy source?

Accepted Answer

Carbohydrates

Question 17

How many essential amino acids are there, and what does 'essential' mean in this context?

Accepted Answer

9; they must be obtained from the diet because the body cannot synthesize them.

Question 18

Which of the following foods contains cholesterol?

Accepted Answer

Egg yolk

Question 19

Which part of the GI tract is responsible for most nutrient absorption?

Accepted Answer

Small intestine

Question 20

A person consumes 70g of protein in a day. How many calories does this provide from protein alone?

Accepted Answer

$$ 70 	imes 4 = 280 $$ calories

Nutrition Study Guide: Key Concepts and Practice Questions

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