Calories, abbreviated as card and cal, are transliterated from English. It is defined as the heat required to raise 1 kg of water to 1 degree Celsius at 1 atmospheric pressure.
Just as computers consume electricity and trucks consume oil, so do human daily activities. Heat gives people the energy needed for exercise, daily work and life. People who lose weight can burn fat through exercise, which can accelerate calorie consumption and achieve the goal of healthy weight loss.
Human survival needs energy, which is obtained from food. The calorie content in food is a measure of how much potential energy food produces.
The difference between calories and kilojoules
1, different energy units
Calories, that is, calories and kilocalories (kilocalories) are units of energy. 1 calorie is the energy required to raise 1 gram of water by 1 degree. Food energy is usually calculated in kilocalories, also known as calories. In the international unit, energy should be expressed in joules.
1 joule = 4. 182 calories, then 1 kcal = 4. 182 kj. This unit is sometimes used to represent the energy in food. Many times, people use the unit of kilocalories to calculate the energy in food because it is more convenient.
2. The representative values are different
Kilocalories = calories. Kilocalories = kilocalories. 1 kcal = 1000 kcal. 1 kJ = 1000 joules. 1 kcal 1 kcal 1 calories = 1000 calories. 1 kcal/1 kcal/1 calorie (kcal) = 4. 184 kcal. 1 card = 4. 182 joules.