Let's talk about calories. The definition of calories is it's a unit for energy. You can write it short ca l or KCL. The K stands for kilo. So 1000 if you have one kilo calorie, it's thousand calories. Often you will see your unit for energy.

It's still June or June and one kilo calorie are 4.187 kilojoules. It's important to know that every food contains calories. Yes also cell and every movement you do burns calories. Yes, also washing dishes.