theoretically, consuming one kilogram of fat releases 9 kilocalories, and consuming one kilogram of fat in human body is equivalent to releasing 77 kilocalories, which is equivalent to 32,231 kilojoules. Among them, kilocalorie is also called calorie, which is a unit of heat, that is, the heat required for one kilogram of water to raise its temperature by one degree Celsius. cal is the abbreviation of calorie, which is transliterated from English and abbreviated as CAL. Calories are energy units, which are now widely used in nutrition measurement and fitness manuals. The international standard energy unit is Joule, which is abbreviated as coke, abbreviated as KJ in English, and 1 Joules in thousands. Nowadays, kilojoules are often used to measure the calories contained in food and the calories consumed per unit time of a certain exercise.