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What are the common coarse grains?
Coarse grains are mainly divided into three categories: cereals, miscellaneous beans and tubers.

I. Cereals

1, corn

Corn contains more linoleic acid, vitamins, cellulose and minerals, especially magnesium and selenium, which has comprehensive health care function. Corn contains a longevity factor-glutathione, which, with the participation of selenium, can produce glutathione oxidase, which has anti-aging and anti-aging effects.

2. Purple rice

The difference between it and ordinary rice is that its seed coat has a thin layer of purple substance. Purple rice cooking is very fragrant and glutinous. As a tonic, it is called purple glutinous rice or "medicine valley". The rice porridge boiled with purple rice is fragrant, shiny, soft and delicious. Because of its rich nutrition and good nourishing effect, it is called "blood-enriching rice" and "longevity rice".

3. Sorghum

Sorghum is sweet and warm, and has the function of strengthening the spleen and benefiting the stomach. For children with indigestion, it is advisable to fry sorghum in the pot, shell and grind it, and take 2 to 3 grams each time. However, sorghum is warm and contains tannic acid with astringent and antidiarrheal effects, so it is not suitable for constipation.

4. Oats

Oats contain linoleic acid, which is equivalent to 10 "Maitong" in every 50g of oats, so oats can inhibit the increase of cholesterol. It is reported that a related study in the United States confirmed that eating 60 grams of oats every day can reduce cholesterol by an average of 3%.

5. Buckwheat

Buckwheat contains "rutin", which can reduce cholesterol in human blood and protect blood vessels. Nepalese people in the south of the Himalayas not only eat a lot of buckwheat noodles, but also eat the tender stems and leaves of buckwheat, and local residents rarely suffer from hypertension.

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Second, miscellaneous beans

1, soybean

Soybean and its products have special effects on cardiovascular system. Regular consumption of soybean food can effectively reduce serum cholesterol and help relieve the damage of arterial wall. Some scholars have found that soybeans soaked in vinegar can be used to treat hypertension and obesity. Because the saponin in soybean can eliminate the fat attached to the blood vessel wall and reduce the cholesterol content in blood.

2. Black beans

Black beans are called "Valley of Kidney". 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.

3. Mung beans

When autumn is dry, people tend to become irritable, so it is necessary to clear the heart and reduce the fire while replenishing water. Mung beans clear away heat, relieve summer heat and induce diuresis. It has the effects of improving eyesight, lowering blood pressure, moistening throat and quenching thirst, and is beneficial to eliminate heatstroke, food poisoning and dysuria.

Third, tubers

1, sweet potato,

Sweet potato is a delicious and cheap longevity food. Its taste is sweet and cool, and it can promote fluid production to quench thirst, moisten lung and smooth intestine, tonify spleen and stomach, dredge stool, and also has anticancer effect. Sweet potato is a low-calorie and low-fat food, which can also prevent carbohydrates from turning into fat. Eating it in autumn can play a role in losing weight.

2. Yam

Tuber is a commonly used Chinese medicine "Dioscorea opposita", which is rich in starch and can be eaten by vegetables. Taking medicine can clear away heat and toxic materials, replenish spleen and stomach loss, and treat deficiency of qi, dyspepsia, nocturnal emission, enuresis and nameless swelling.

3. Potatoes

Potato tuber contains a lot of starch. Starch is the main energy source of edible potato. -Generally, early-maturing potatoes contain11%~14% starch, middle-late maturity potatoes contain14% ~ 20% starch, and the tuber of high-starch varieties can reach more than 25%. Tubers also contain glucose, fructose and sucrose.

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