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What are the black foods?
1, black rice

It has the effects of nourishing yin and tonifying kidney, invigorating spleen and warming liver, nourishing blood and benefiting qi, enhancing intelligence and brain, enhancing metabolism, improving eyesight and promoting blood circulation, treating juvenile gray hair, tonifying deficiency of pregnant women and preserving health. It has therapeutic effect on anemia, hypertension, neurasthenia, chronic nephritis and other diseases. Trace elements such as vitamin B (twice that of ordinary rice), B2, B6, B 12, iron (seven times that of ordinary rice), calcium, phosphorus, selenium, magnesium and zinc are all higher than those of white rice.

2. Auricularia auricula

Enriching blood also has the function of cooling blood and stopping bleeding, and has the effect of treating both symptoms and root causes of menorrhagia, hemoptysis, hematemesis, massive hemorrhage and hemorrhoid bleeding.

Auricularia auricula has a strong colloidal adsorption, which can digest fibers and absorb intestinal residues, thus cleaning the gastrointestinal tract. The lipid component of auricularia auricula contains nucleic acid and lecithin. Modern scientific research shows that it has the effects of bodybuilding and beauty, delaying aging and prolonging life. Therefore, Auricularia auricula is deeply loved by consumers at home and abroad and enjoys the reputation of "vegetarian food and good meat".

3. Black buckwheat

It is rich in nutrients, with protein content of 13% and fat content of 3%, among which oleic acid and linoleic acid content are quite high. In addition, it is also rich in vitamins P, B 1, B2, VE and trace elements such as magnesium, iron, calcium and copper, which are many times higher than cereals. In particular, the content of trace element copper ranks first among all kinds of grain. Black buckwheat can also be used as medicine, which has the effects of digestion, antiperspirant and anti-inflammatory.

Because it is rich in oleic acid and linoleic acid, it can reduce blood lipid and prevent cerebrovascular bleeding. In addition, it also contains chlorophyll, rutin and nicotinic acid. Rutin can reduce capillary permeability, strengthen the role of vE, and promote the accumulation of VC in the body. Nicotinic acid can dilate small blood vessels and lower cholesterol. Black buckwheat is also used to treat hypertension, control diabetes, improve vision, prevent and treat cataract and retinitis.

4. Black beans

It has the functions of nourishing liver and kidney, strengthening bones and muscles, warming stomach, improving eyesight, promoting blood circulation, inducing diuresis and detoxifying, and is also a good product for moistening skin and blackening hair. Black beans are rich in vitamins, egg yolk, riboflavin, melanin and hormones called "vitamins". Among them, B vitamins (B 1, B2) and VE are very high, and only VE content is more than 7 times that of meat, which plays a great role in human nutrition, health care, anti-aging, beauty beauty and enhancing vitality.

5. Black Douchi

Widely used in medicine, it is mainly used to treat sand pain, cold and heat, miasma, irritability, chest tightness and fatigue, asthma and cough, cold pain in feet, hemostasis and diarrhea, abdominal pain, fetal poisoning in children, head sore and so on. Eating lobster sauce for the elderly can effectively prevent the formation of thrombosis. So as to strengthen blood vessels, maintain adequate cerebral blood flow and prevent and treat Alzheimer's disease.

References:

Baidu encyclopedia-black food