How many calories do adults need every day?

just as computers consume electricity, trucks consume oil, and human daily activities also consume heat. 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.

Three sources of heat

Heat comes from carbohydrate and fat. protein

Carbohydrate produces heat = 4 kcal/g

protein produces heat = 4 kcal/g

Fat produces heat = 9 kcal/g.

second, the unit of heat

Kilocalorie, kilojoule

1 kilocalorie = 4.184 kilojoule

1 kilocalorie: it is the heat that can make 1 millilitre of water rise by 1 degree Celsius.

Third, adults need calories every day

Adults need calories every day =

Basic calories for basic metabolism+calories for physical activity+calories for digesting food.

calories required for digesting food =1% x (minimum calories required for basic metabolism of human body+calories required for physical activity)

calories required for adults every day = 1.1 x (minimum basic calories required for basic metabolism of human body+calories required for physical activity).

daily calories required by adults

Male: 925- 19 kilojoules

Female: 798-882 kilojoules

Note: the daily calories provided by food should be no less than 5 kilojoules-75 kilojoules, which is the least energy to maintain normal life activities of human body

Basic calorie calculation for basic metabolism of human body. Card) = weight (kg) x 9

Men: basic calorie (kcal) = weight (kg) x 1

Accurate calculation of basic calorie for basic metabolism of human body

Women

Age formula

18- 3 years old 14. 6 x weight (kg)+45

31- 6 years old 8. 6 x weight (kg)+83

1 over 6 years old. 4 x weight (kg)+6

Male

18- 3 years old 15. 2 x weight (kg)+68

31- 6 years old 11.5 x weight (kg)+83

6 years old or older 13.4 x weight (kg)+49.