A person consumes 2000 kcalories and 80 grams of protein.How would you calculate the %kcal from protein?
A)2000/80,then multiple by 4,then convert to a percentage.
B)2000/4,then multiple by 80,then convert to a percentage.
C)2000/ (80 X4),then convert to a percentage.
D)(80X4)/2000,then convert to a percentage.

Question

Quizplus · Accepted Answer

First, we need to calculate the total kcalories from protein: 
80 grams x 4 kcalories per gram of protein = 320 kcalories from protein 
To calculate the %kcal from protein, we then divide the kcalories from protein by the total kcalories consumed and multiply by 100: 
320 kcalories from protein / 2000 total kcalories consumed x 100 = 16% kcal from protein

A Person Consumes 2000 Kcalories and 80 Grams of Protein