In English, "calorie" (lowercase) means calorie, which is about 4. 186 joules, and "calorie" (uppercase) means calorie, which is about 4 186 joules.

Nutritional "15 degree heat": The heat required to raise 1 g water from 1 4.5℃ to 15.5℃ at1atmospheric pressure is about 4. 1855 joules by the International Committee.

Extended data

Daily calorie requirement of adults = basic calorie required for basic metabolism of human body+calorie required for physical activity+calorie required for digestion of food.

Heat required for digesting food = 10% x (minimum heat required for basic metabolism of human body+heat required for physical activity).

Daily caloric requirement of adults = 1. 1 x (minimum basal caloric requirement for basic metabolism of human body+caloric requirement for physical activity).

Male: 9250- 10090 kJ.

Female: 7980-8820 kJ.

Note: The daily calories provided by food should not be less than 5,000-7,500 kilojoules, which is the least energy to maintain normal life activities.

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