You have just purchased a food containing 9 grams of protein, 6 grams of fat, and 13 grams of carbohydrate per serving Each serving contains:
A)112 kcalories
B)142 kcalories
C)177 kcalories
D)222 kcalories

Question

Quizplus · Accepted Answer

To calculate the total number of calories in the food, we need to multiply the number of grams for each macronutrient by their respective calorie values (4 kcal/gram for carbohydrate and protein and 9 kcal/gram for fat) and add them together.

Total Calories per serving = (9 grams of protein x 4 kcal/gram) + (6 grams of fat x 9 kcal/gram) + (13 grams of carbohydrate x 4 kcal/gram) 
= 36 kcal + 54 kcal + 52 kcal 
= 142 kcal

Therefore, the best choice is B, as it provides the fewest calories per serving (compared to choices C and D) while also offering a decent amount of protein.

You Have Just Purchased a Food Containing 9 Grams of Protein