In nutrition, "calorie" is defined as the energy people get when consuming food. Every food has a specific amount of calorie.
The preparation of food largely affects the amount of calories a meal has. For example,<u> a fried egg has more calories than a boiled egg</u>. Why is that so? Frying an egg means using oil and oil in itself has calories of its own. <em>A tbsp. of oil has 120 calories. </em>These calories are being added together with the egg. On the other hand, boiling an egg only requires water. There's no calorie in water. So you don't need to add any calorie to the egg; thus, it has lesser calories than the fried egg.
In this sense, it shows that food preparation truly affects the calories in a meal.
