Q: If a food contains 20g of carbohydrates, 10g of protein, and 5g of fat, what is the total caloric value of the food? Use the following caloric values: carbohydrates = 4 kcal/g, protein = 4 kcal/g, fat = 9 kcal/g.

$$ (20 \times 4) + (10 \times 4) + (5 \times 9) = 80 + 40 + 45 = 165 \text{ kcal} $$

Q: A food label lists the following: 10g fat, 0g protein, 0g carbohydrate. What percentage of the calories in this food come from fat? (Fat = 9 kcal/g)

$$ \frac{10 \times 9}{10 \times 9} \times 100 = 100\% $$

Q: If a food contains 5g protein, 10g carbohydrate, and 2g fat, what is the percentage of calories from protein? (Protein = 4 kcal/g, Carbohydrate = 4 kcal/g, Fat = 9 kcal/g)

$$ \frac{5 \times 4}{(5 \times 4) + (10 \times 4) + (2 \times 9)} \times 100 = \frac{20}{20+40+18} \times 100 = \frac{20}{78} \times 100 \approx 25.6\% $$

Q: A nutrition label states a food contains 8g fat, 12g carbohydrate, and 6g protein. Calculate the total energy content in kcal.

$$ (8 \times 9) + (12 \times 4) + (6 \times 4) = 72 + 48 + 24 = 144 \text{ kcal} $$

Q: If a person consumes 2,000 kcal per day and 30% of their calories come from fat, how many grams of fat are they consuming? (Fat = 9 kcal/g)

$$ \frac{0.3 \times 2000}{9} = \frac{600}{9} \approx 66.7 \text{ g} $$

Question 1

Which of the following is NOT a major factor influencing food choices, according to the provided diagram?

Accepted Answer

Genetic modification

Question 2

A person chooses to eat a salad instead of a burger because they believe it is healthier. Which factor from the food choice diagram does this best represent?

Accepted Answer

Nutrition knowledge

Question 3

If a food contains 20g of carbohydrates, 10g of protein, and 5g of fat, what is the total caloric value of the food? Use the following caloric values: carbohydrates = 4 kcal/g, protein = 4 kcal/g, fat = 9 kcal/g.

Accepted Answer

$$ (20 	imes 4) + (10 	imes 4) + (5 	imes 9) = 80 + 40 + 45 = 165 	ext{ kcal} $$

Question 4

Which macronutrient provides the highest energy per gram?

Accepted Answer

Fat

Question 5

A food label lists the following: 10g fat, 0g protein, 0g carbohydrate. What percentage of the calories in this food come from fat? (Fat = 9 kcal/g)

Accepted Answer

$$ \frac{10 	imes 9}{10 	imes 9} 	imes 100 = 100\% $$

Question 6

Which of the following foods is likely to have the highest water content based on the pie charts provided?

Accepted Answer

Broccoli

Question 7

A person eats when they are stressed, regardless of hunger. Which factor is influencing their food choice?

Accepted Answer

Emotions

Question 8

Which of the following statements about water in the human body is correct?

Accepted Answer

Water makes up more than half of the human body by weight.

Question 9

If a food contains 5g protein, 10g carbohydrate, and 2g fat, what is the percentage of calories from protein? (Protein = 4 kcal/g, Carbohydrate = 4 kcal/g, Fat = 9 kcal/g)

Accepted Answer

$$ \frac{5 	imes 4}{(5 	imes 4) + (10 	imes 4) + (2 	imes 9)} 	imes 100 = \frac{20}{20+40+18} 	imes 100 = \frac{20}{78} 	imes 100 \approx 25.6\% $$

Question 10

Which of the following best describes the role of culture in food choices?

Accepted Answer

Culture determines the types of foods considered acceptable or desirable.

Question 11

A nutrition label states a food contains 8g fat, 12g carbohydrate, and 6g protein. Calculate the total energy content in kcal.

Accepted Answer

$$ (8 	imes 9) + (12 	imes 4) + (6 	imes 4) = 72 + 48 + 24 = 144 	ext{ kcal} $$

Question 12

Which of the following is a micronutrient?

Accepted Answer

Vitamin C

Question 13

A person chooses a food because it is quick to prepare. Which factor is most likely influencing their choice?

Accepted Answer

Convenience

Question 14

Which of the following statements about macronutrients is correct?

Accepted Answer

Macronutrients include carbohydrates, proteins, and fats.

Question 15

If a person consumes 2,000 kcal per day and 30% of their calories come from fat, how many grams of fat are they consuming? (Fat = 9 kcal/g)

Accepted Answer

$$ \frac{0.3 	imes 2000}{9} = \frac{600}{9} \approx 66.7 	ext{ g} $$

Question 16

Which of the following is NOT a function of water in the body?

Accepted Answer

Providing energy

Question 17

A person follows a vegetarian diet for religious reasons. Which factor is influencing their food choice?

Accepted Answer

Social reasons

Question 18

Which of the following best describes the energy yield of alcohol?

Accepted Answer

Alcohol provides 7 kcal/g.

Question 19

Which of the following is an example of a food trend influencing food choices?

Accepted Answer

Choosing gluten-free products due to their popularity

Introduction to Nutrition: Food Choices and Water Content

Guida di studio - Domande di pratica

Study guide - Flashcard