Question

A food label has the following information per serving: 28g carbohydrate, 10g protein, 12g fat, 200 mg Calcium.

A. How many Calories are there in a serving?
B. Which nutrient provides the most Calories?
C. What percent of the Calories are provided by carbohydrates?
D. What Percent of Calories are provided by proteins?
E. What percent of the Calories are provided by fats?

Answer 1

A serving contains 260 Calories, with fats providing the most Calories. Carbohydrates constitute 43.08% of Calories, proteins 15.38%, and fats 41.54%.

Step-by-step explanation:

To calculate the number of Calories in a serving, we multiply the quantities of carbohydrate, protein, and fat by the average Calories per gram for each macronutrient. Carbohydrates and proteins provide about 4 Calories per gram, while fats provide about 9 Calories per gram.

A. The total Calories in a serving can be calculated as follows:

(28g carbohydrate x 4 Calories/g) + (10g protein x 4 Calories/g) + (12g fat x 9 Calories/g) = 112 + 40 + 108 = 260 Calories

B. Fats provide the most Calories at 108 Calories per serving.

C. The percent of Calories provided by carbohydrates is calculated by: (112 Calories from carbohydrate / 260 total Calories) x 100 = 43.08%

D. The percent of Calories provided by proteins is: (40 Calories from protein / 260 total Calories) x 100 = 15.38%

E. The percent of Calories provided by fats is: (108 Calories from fat / 260 total Calories) x 100 = 41.54%