Have you ever wondered how the "energy" value of a food product is worked out?
"Energy" is the amount of kilojoules or calories that your body gets as you digest food.
Every gram of each food type has a certain amount of kilojoules or calories.
It works like this:
Every gram of protein, sugar and carbohydrate gives 17 kilojoules of energy once digested.
Every gram of fat or oil (whether saturated or unsaturated) gives 37 kilojoules of energy.
Every gram of fibre gives 8 kilojoules
So you can see that fat and oil have more than twice the number of kilojoules than protein, sugar and carbohydrates, and almost four times the kilojoules of fibre.
So the easy way to keep the kilojoules down is to choose low fat foods, and look for fibre rich whole grain foods.