Calorie (abbreviated as cal), which is a transliteration of the English word Calorie, is defined as the amount of heat required to raise the temperature of 1 gram of water by 1°C under 1 atmosphere of pressure. Calorie is a unit of energy. The international standard unit of energy that is still widely used in nutrition measurement and fitness manuals is joule. By accelerating the consumption of calories, the effect of weight loss is achieved.