THE ANSWER IS kilojoules hope it helped!
KiloCalories and KiloJoules.
The unit of energy found on the food packets is calories. Most of the calorie suggestions are based on 2,000 calorie intake. Consume at least 1,200 calories every day.
Calorie is the unit used to express chemical energy in food.
Any unit of energy can be used to describe the energy content of food.
calorie--
A Calorie
1) The unit for any type of energy is the joule. 2) In some contexts, such as food, the old-fashioned unit "calorie" is still used.
calories
Calories are the standard unit.
The SI unit for energy - any type of energy - is the joule. For food, another unit, the calorie, is still often used.
Light is made of "photons", ie. is a little packets of energy that can carry electromagnetic radiation.
It is a more convenient unit of measurement.