1. The current cereals usually refer to rice, wheat, sorghum, soybeans, and corn. Now we habitually refer to grains other than rice and wheat as cereals, so cereals are also called cereals. Refers to all food crops. The term "five grains" of whole grains appeared in the Spring and Autumn Period and the Warring States Period.

2. Common cereals include oats, barley, kidney beans, soybeans, black beans, etc. Because of their short growing season, ability to be grown extensively, and drought tolerance, they are particularly suitable for the growth of cereal crops in dry climates with little rain. . Aboriginal millet is drought and barren resistant and can easily survive in harsh environments. It is the most sacred crop for Aboriginal people.

Because of their rich nutrition and unique flavor, whole grains are often widely processed into various foods, and then appear in our daily lives in different forms