Determine the total Calories (kcal) in one serving.

Question

One serving of pizza is composed of 16 g of protein, 37 g of carbohydrate, and 13 g of fat. Determine the total Calories (kcal) in one serving.

Answer 1

Hi! Not sure if you are still looking for this answer but it has to do with how many calories or kilo calories are in 1 g of each of the type of nutrients.

For protein and carbs, there are 4 calories per 1 gram.

For fats, there are 9 calories per 1

gram.

From there, it is simply setting up the math:

16 grams of protein x 4 calories/1 gram = the unit gram cross cancels out leaving calories = 64 calories

Repeat for the other 2

Let me know if you still have questions!