Using the energy values for foods (see Table 3.7 ),...

Using the energy values for foods (see Table 3.7 ), determine each of the following (round off the answer for each food type to the tens place): a. the total kilojoules in two tablespoons of crunchy peanut butter that contains $6 \mathrm{~g}$ of carbohydrate, $16 \mathrm{~g}$ of fat, and $7 \mathrm{~g}$ of protein b. the grams of protein in one cup of soup that has $110 \mathrm{kcal}$ with $9 \mathrm{~g}$ of carbohydrate and $6 \mathrm{~g}$ of fat c. the kilocalories in one can of cola if it has $40 . \mathrm{g}$ of carbohydrate and no fat or protein d. the total kilocalories for a diet that consists of $68 \mathrm{~g}$ of carbohydrate, $9 \mathrm{~g}$ of fat, and $150 \mathrm{~g}$ of protein

Using the energy values for foods (see Table 3.7 ), determine each of the following (round off the answer for each food type to the tens place):
a. the total kilojoules in two tablespoons of crunchy peanut butter that contains $6 \mathrm{~g}$ of carbohydrate, $16 \mathrm{~g}$ of fat, and $7 \mathrm{~g}$ of protein
b. the grams of protein in one cup of soup that has $110 \mathrm{kcal}$ with $9 \mathrm{~g}$ of carbohydrate and $6 \mathrm{~g}$ of fat
c. the kilocalories in one can of cola if it has $40 . \mathrm{g}$ of carbohydrate and no fat or protein
d. the total kilocalories for a diet that consists of $68 \mathrm{~g}$ of carbohydrate, $9 \mathrm{~g}$ of fat, and $150 \mathrm{~g}$ of protein

Key Concepts

Macronutrients

Macronutrients are the three main types of nutrients—carbohydrates, fats, and proteins—that provide energy to the body. Each macronutrient contributes a specific amount of energy per unit mass, and understanding their roles is essential for calculating the total energy content of foods.

Energy Conversion Factors

Energy conversion factors are the values used to convert the mass of a macronutrient into its corresponding energy yield. For example, carbohydrates and proteins typically provide about 4 kilocalories per gram, while fats provide about 9 kilocalories per gram. These factors are crucial for determining the energy content from the amounts of each macronutrient present in a food item.

Food Energy Calculation

Food energy calculation involves multiplying the quantity of each macronutrient in a food by its respective energy conversion factor and then summing the results to obtain the total energy content. This process allows for accurate estimation of the caloric or kilojoule content of various foods based on their macronutrient composition.

Unit Conversion and Rounding

Unit conversion and rounding are important in nutritional calculations, as energy values may need to be expressed in different units, such as kilocalories versus kilojoules. Additionally, rounding the final results to a specified degree of precision, such as the tens place, ensures that the reported figures are consistent and practical for dietary planning.

Transcript

0:00 Hi everyone.

00:01 In this question, use the energy value for food.

00:04 See the table 3 .7 determine each of the following run -up answer for each type of food to the 10's place.

00:10 A total kilojillion 2 tablespoon of a crunchy peanut butter that contains 6 gram of carbonate, 16 gram of fat and 7 gram of a protein.

00:26 7 gram of a protein.

00:33 Therefore we'll try it 8.

00:39 Carbohydrate is equal to 6 gram that is equal to 6g.

00:54 That is equal to 6 into 17 that is equal to 102 kilojoule.

01:03 Then fat 16 gram that is equal to 16 into 38 that is equal to 608 kilojure.

01:20 Then proteins, proteins that is equal to 7 gram that is equal to 7 into 17 that is equal to 119 kilojoule and therefore the sum of total is 829 kilojoules and therefore the total kilojoules in 2 tablespoons of crunchy peanut total kilojoules into therefore total kilojure in 2 tablespoon of crunchy peanut butter crunchy peanut butter that is equal to 829 kilojoude then b, the gram of protein in one cup of a soup that has 110 kilo calorie with 9 gram of a carbohydrate and 6 gram, then 9 gram of carbonate and 6 gram of fat.

03:45 So that is equal to proteins 110 kilo calorie that is equal to 10 kilo calorie that is equal to 10010.

04:02 Contained divided by 4 that is 27 .5 gram.

04:10 Then 5 gram, then carbohydrate is equal to 9 gram, then fat is equal to 6 gram...

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