Food is the most important thing for people. Most of the nutrients we need come from three meals a day, including protein, fat, vitamins and water. Nowadays, the eating habit of three meals a day is very common. Some people even say that "people are iron and rice is steel, and they will be hungry if they don't eat a meal."
In fact, the eating habit of three meals a day is only an established eating habit in the past 1000 years. In the early days, people were not like this.
In ancient times, people did not have the habit of eating in designated places, which was mainly caused by low productivity. People live by hunting, and there is not enough food to eat, let alone eat in designated places. At that time, we followed the principle of "hunger means eating, and fullness means abandoning the rest".
In Shang dynasty, people gradually established the habit of eating regularly, but at that time it was a two-meal system. It is divided into big food and snacks, in which big food refers to food.
Later, the habit of eating three meals a day began to appear in the pre-Qin period, which was first seen in Zhuangzi's book The Inner Chapter of Zhuangzi. "Suitable for rough and pale people, eat three meals instead, and the stomach is still as expected." Generally speaking, when you are hungry while playing, adding a meal in the middle will form the bud of three meals.
Later, wealthy families gradually began to eat three meals a day, while the poor could not achieve this treatment.
With the development of productive forces, in the Song Dynasty, with the development of agriculture and commerce in China, people lived and worked in peace and contentment, and their lives gradually became richer, and the eating habit of three meals a day was finally established.