Extended data:
Nutrients needed by human body can be divided into five categories: protein, fat, carbohydrates, vitamins, minerals (some also add dietary fiber and water, which are called seven nutrients).
These five nutrients are all needed by human body. They have many functions, such as forming human tissues (protein, fat, carbohydrates and minerals), providing energy for human body (protein, fat and carbohydrates), preventing diseases (protein, vitamins) and resisting oxidation (vitamins and minerals).
Without any kind of nutrients, to a certain extent, our bodies will enter sub-health or even disease state.
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. Special physiological conditions such as pregnancy and illness will change.
This part of energy is used for basic metabolism (the energy consumed by the human body when awake and extremely quiet is not affected by muscle activity, environmental temperature, food and mental stress. ), and the other part is used for talking, reading, running and other daily activities.
Therefore, in order to lose weight, the energy consumed every day is less than the energy consumed by all activities of the human body that day. On the one hand, you can increase muscles and improve basal metabolism through exercise; On the other hand, we can control the intake and absorption of energy, that is, diet, so that it is less than or equal to the energy needed for one day.
References:
People's Network-What to eat during weight loss? After reading this article, you will understand everything.