1, the daily calories needed by adults = the basic calories needed for basic metabolism of human body+the calories needed for physical activity+the calories needed for digesting food.

(1) calories needed to digest food = 10% x (minimum calories needed for basic metabolism of human body+calories needed for physical activity)

(2) The daily calories required by adults = 1. 1 x (the minimum basic calories required by basic metabolism of human body+the calories required by physical activity)

Note: the daily calories provided by food should be no less than 5000-7500 kilojoules, which is the least energy to maintain normal life activities of human body.

2, the role of heat

Just as computers consume electricity and trucks consume oil, so do human daily activities. In addition to providing people with energy needed for sports, daily work and life, heat also provides energy needed for human life activities, blood circulation, breathing, digestion and absorption, etc. People who lose weight can burn fat through exercise, and can achieve the effect of accelerating calorie consumption to achieve healthy weight loss.

Extended data:

Calorie (Cal for short), transliterated from English Calorie, is defined as the heat required to raise 1 gram of water 1 degree Celsius at 1 atmospheric pressure; Calorie is an energy unit, which is still widely used in nutrition measurement and fitness manuals. The international standard energy unit is joule.

As the legal unit of food calories, joules are widely used in Europe, while calories are used in the United States. Although Joule is the legal unit in Chinese mainland and Taiwan Province, calories are still widely used in Chinese mainland and Taiwan Province due to the tradition.

Calories are a unit of energy. We often associate calories with food, but in fact they apply to any substance that contains energy.

References:

Calories-Baidu Encyclopedia