Question

Lisa is trying to choose more low-fat foods in order to reduce her risk for cardiovascular disease. One low-fat cookie that she sees advertised in the grocery store has 22 grams of carbohydrate, 2 grams of protein, and 1 gram of fat per cookie. How many kilocalories are in one of these low-fat cookies?

1) 105 kcal per cookie
2) 100 kcal per cookie
3) 225 kcal per cookie
4) 25 kcal per cookie

Answer 1

The low-fat cookie has 105 kilocalories per cookie, with 88 kcal from carbohydrates, 8 kcal from protein, and 9 kcal from fat, corresponding to option 1) 105 kcal per cookie.

Step-by-step explanation:

Lisa is trying to choose more low-fat foods to reduce her risk for cardiovascular disease and is considering the nutritional value of a low-fat cookie.

To calculate how many kilocalories are in one of these cookies, we can use the fact that carbohydrates and proteins both provide 4 kilocalories per gram, while fats provide 9 kilocalories per gram.

Using the given nutritional information (22 grams of carbohydrate, 2 grams of protein, and 1 gram of fat per cookie), we can calculate the total kilocalories as follows:

1. Carbohydrates: 22 g × 4 kcal/g = 88 kcal
2. Protein: 2 g × 4 kcal/g = 8 kcal
3. Fat: 1 g × 9 kcal/g = 9 kcal

The sum of these amounts equals 105 kilocalories per cookie (88 kcal from carbohydrates + 8 kcal from protein + 9 kcal from fat), which corresponds to option 1) 105 kcal per cookie.