Male: [665+ 1.38x weight (kg)+5x height (cm)-6.8x age] x activity.
Female: [665+9.6x weight (kg)+ 1.9x height (cm)-4.7x age] x activity.
Activity: The average person's activity range is1.65,438+0-1.3. For women who only sit in the office on weekdays, the amount of activity is about1.65,438+0, and for people with high exercise, it is about 1.3.
Extended data:
The heat consumed by adults is utilized in three aspects: basic metabolism, activity and food thermal effect; During growth and pregnancy, tissue construction requires extra calories.
Many people confuse heat energy with internal energy. Heat actually refers to the change of internal energy and the work done by the system. Heat describes the change of internal energy, which is a state quantity and state function of the system, corresponding to a state point of the system. Fully understanding the difference between heat and internal energy is the key to understanding the first law of thermodynamics.
In the process of heat transfer, the heat transferred between objects is related to the process, that is, heat absorption or heat release must be carried out in a certain process. When an object is in a certain state, it can't be said how much heat it contains (heat is a process quantity and a change quantity).
In 2000, China Nutrition Society put forward the reference intake of dietary energy for China residents, pointing out that adult male light and moderate manual workers need 2400-2700 calories a day; The daily energy requirement of female light and moderate manual workers is 2 100-2300 kcal. Babies, children and adolescents, pregnant women, nursing mothers and the elderly have different physiological characteristics and different energy requirements.
References:
Calories Calories-Baidu Encyclopedia