Grains refer to all kinds of plant seeds in cooked food, and can also be collectively referred to as "grains". Food crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch and so on.

In ancient times, people used to eat in the street. Later, it was also called raw grain and finished grain such as cereals, beans and potatoes. The food concept of the Food and Agriculture Organization of the United Nations (hereinafter referred to as FAO) refers to cereals, including wheat, beans, coarse grains and rice.

Citation interpretation

Wheat: wheat, barley, highland barley, rye and oats.

Beans: soybeans, adzuki beans (red beans) and mung beans.

Rice: japonica rice, indica rice, glutinous rice, upland rice (upland rice) and deep rice.

Coarse grains: corn, sorghum, buckwheat, millet (millet, millet) and millet (millet).

In addition, there are fruits and vegetables as supplementary food:

Pumpkin, cucumber, cassava, sweet potato (sweet potato, sweet potato), potato, cabbage, spinach, etc.

In ancient times, people used to eat in the street. Later, it was also called raw grain and finished grain such as cereals, beans and potatoes.

"Zhou Li Local Officials and People": "If you have something to do with the teacher, you should treat it as food." Zheng Xuan's note: "The food on the street is called embarrassment; Stop living and eat, this is called rice. "

"Zuo Zhuan Xiang Gong Eight Years": "Chu Shi is far away, and food will be exhausted."

Wei Zhi, Emperor Wu of the Three Kingdoms: "(Yuan Shao) is rich in land and food, which is enough to serve us."

"Wake up the world and say that Qian Xiucai mistakenly occupied the Phoenix Valley": "There is a rich family in Xidongting with a surname of Gao. Teenagers are used to traveling in Huguang and selling food. "

Wei Wei from Amb Lee: "I'm here to prepare food for you."