calculating energy content

Question 1

how to calculate the carbohydrate percentage? (when not given)

Answer 1

add all the nutrient percentages and subtract from 100%

Question 2

ash

Answer 2

inorganic mineral content

Question 3

energy per 100g of nutrient

Answer 3

kcal provided per gram multiplied by the nutrient percentage
(kcal/g x nutrient%)

Question 4

total energy density

Answer 4

adding kcal per 100g from fat, protein and carbs

Question 5

nutrient energy as a percentage

Answer 5

kcal per 100g for nutrient divided by energy density times 100
(nutrient ÷ energy density x 100)