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What does grain mean?
There are many sayings about "five grains" in ancient times, and there are mainly two kinds:

One refers to rice, millet, millet, wheat and rice;

The other refers to hemp, millet, millet, wheat and glutinous rice.

1. Xiaomi: Xiaomi has a shell, that is, yellow rice. Its seeds are sticky when cooked and can be used to make wine and cakes. Because it is not conducive to digestion, "millet" is basically not used as a staple food now.

2. Xiaomi: also known as Xiaomi, it is drought-tolerant and has many varieties. Commonly known as "colorful millet", including white, red, yellow, black, orange, purple millet and sticky millet. The earliest wine in China was also made from millet. Millet is suitable for growing in arid areas without irrigation. Its stems and leaves are hard and can be used as feed. Generally only cows can digest it. The staple food now is basically not "millet".

3. Cannabis: Cannabis is mainly used in agricultural production. His stem bark can be used as rope (hemp rope), hemp clothes, hemp paper and so on. After retting, it is very durable. Peeled stems can be used as firewood and build houses, which feels a little woody. At present, skins and stems can be made into various high-grade papers such as Xuan paper by refining fibers.

4, glutinous rice: the floorboard of beans, the old saying goes: "Glutinous rice is the strongest. It was called "Zi" in ancient times and "Dou" in Chinese, and now it is called "Zi". Losers are a general term for many beans. However, soybeans are called glutinous rice, bean seedlings are called Huo, and adzuki beans are called glutinous rice. " Bean products are also one of China people's favorite foods.

Extended data:

Health care function of five grains

Rice moistens the lungs again. Rice covers rice, purple rice and so on. When there are symptoms such as cough due to lung heat, it has a good effect of nourishing yin and moistening lung.

Soybeans nourish the kidneys. Black beans in soybeans are called "kidney valley". Traditional Chinese medicine believes that it has the effects of tonifying kidney, strengthening body, detoxifying and moistening skin, and has a good therapeutic effect on kidney deficiency and edema.

Millet nourishes spleen. Millet is the first of the five grains, and it can replenish the spleen and stomach if eaten often. Millet is the top tonic for people with spleen deficiency and infirmity, which can tonify the middle energizer and prolong life.

Sorghum nourishes the liver Sorghum and soybean belong to miscellaneous grains, but they are indispensable supporting roles in the whole grain. Sorghum has the effects of nourishing the liver and benefiting the stomach, astringing and stopping diarrhea, especially for people with chronic diarrhea. Eating it for a period of time will have a good effect.

Wheat nourishes the heart. Wheat is called "the price of five grains". Chinese medicine believes that it can nourish the heart and soothe the nerves, except for irritability. It has dietotherapy effect on eliminating female climacteric syndrome, spontaneous sweating, night sweats and dysphoria.

Baidu encyclopedia-grain

People's Network-Different Health-keeping Effects of Whole Grains