Question

If an item has 12g carbohydrates, 9g fat, and 3g protein, how many calories are in it?

Answer 1

An item with 12g carbohydrates, 9g fat, and 3g protein contains 141 Calories, calculated using the Atwater system values of 4 Calories/g for protein and carbohydrates, and 9 Calories/g for fat.

Step-by-step explanation:

To determine the number of calories in an item with 12g carbohydrates, 9g fat, and 3g protein, we use the Atwater system. This system assigns an average energy value per gram for each nutrient:

4 Calories/g for both protein and carbohydrates, and 9 Calories/g for fat.

So, the calculation would be as follows:

Carbohydrates: 12g × 4 Calories/g = 48 Calories

Fat: 9g × 9 Calories/g = 81 Calories

Protein: 3g × 4 Calories/g = 12 Calories

Adding these together:

48 Calories + 81 Calories + 12 Calories = 141 Calories.

This item contains a total of 141 Calories.