Wild vegetables are not all surnamed "Qing"
The "nature" of wild vegetables is "wild", which can be described as natural food. It is generally believed that as long as it grows in soil, it will rarely be polluted. Dr. Wang warned that most of the wild vegetables occasionally produced in urban green spaces have been polluted, such as automobile exhaust and pesticides. Because most of the water used in factories is discharged after repeated use, the sewage treatment capacity is insufficient, so the content of toxic substances in industrial wastewater will be quite high. When picking wild vegetables, try to avoid the land that is easy to be polluted by roadside and river ditch. When buying in the market, you must smell the smell first, and if there is a pungent smell, you must eliminate it; Wild vegetables polluted by air are easy to absorb lead, and wild vegetables growing next to wastewater often contain toxins and are not suitable for eating. The "Malantou" picked by the aunt above is not entirely "green food". If you really want to find wild vegetables, you have to go to the suburbs to find real wild places, but don't treat the vegetables grown by farmers as wild vegetables. ...
To dig wild vegetables, we must first find wild vegetables. Weeds and green eyes in the wild will dazzle people for a while. Where should we start? In fact, there are few wild vegetables in that overgrown place, so I probably don't want to "follow the crowd". Some wild vegetables like shepherd's purse and alfalfa like to cluster together. Moreover, it is best not to eat wild vegetables you don't know. Some wild plants are very toxic, ranging from chest tightness, abdominal distension and vomiting to life-threatening. In addition, we should develop the good habit of soaking vegetables in water before cooking, especially washing wild vegetables and washing them several times.
Edible wild vegetables indicate "sex"
Eating wild vegetables can be fried or cold (after boiling water). Common wild vegetables are sowthistle, dandelion, shepherd's purse, bracken, Toona sinensis and purslane. According to Dr. Wang, most wild vegetables are cold, which helps to "reduce fire" and improve immunity. For example, shepherd's purse has the effects of invigorating stomach and spleen, improving eyesight and stopping bleeding, diuresis and detoxification. There is a folk saying that shepherd's purse is a panacea. Malan vegetable has the effects of clearing away heat and toxic materials, stopping bleeding and diuresis, and has a certain curative effect on gingival bleeding, hepatitis, high fever in children and convulsion. Alfalfa is a good medicine for stopping bleeding and relieving asthma. Portulaca oleracea L. has anti-inflammatory, cooling and detoxicating effects, can prevent dysentery, and has therapeutic effects on gastric and duodenal ulcers, oral ulcers and other diseases.
However, Dr. Wang also stressed that eating too many wild vegetables will lead to spleen deficiency and stomach cold. For example, a few wild vegetables, such as thistle and fish-flavored vegetables, are all slightly toxic, and eating more will be harmful. Especially some wild vegetables, such as ferns, also contain allergic substances, which can cause dizziness. So wild vegetables can't be greedy. It is best to know the nature and taste of various wild vegetables and the use value of drugs first, and pay attention to the choice. For example, Dr. Wang said that the main components of dandelion are dandelion, dandelion sterol, dandelion bitter, pectin, inulin and bile. Can prevent and treat lung, stomach and various tumors. However, dandelion is a wild vegetable and is not suitable for cooking. The best way to eat it is to dip it in the sauce and eat it raw. There are also some bitter wild vegetables, which are bitter and cool, have the function of detoxification and fire-dispelling. Eating raw is bitter and sweet, refreshing, but eating too much will damage the spleen and stomach.
Some wild vegetables, such as yam and garlic, are slightly toxic. If it is not soaked, it is prone to general discomfort after eating. Before cooking, this wild vegetable must be soaked in clear water for more than two hours to detoxify.
In addition, it is best to eat wild vegetables now. Wild vegetables are not only stale after being stored for a long time, but also have greatly reduced nutritional components and poor taste.
Drinking scented tea should also be "cautious"
In spring, flowers are in full bloom, as well as the Spring Festival, Chinese rose, roses and so on. Competing to open up. The reporter saw someone picking petals among the flowers in the community, thinking that he loved flowers to satisfy his love for flowers. I didn't know it was picked up until I asked.
According to the food hygiene department, some flowers, like some edible plants, contain trace elements beneficial to human body, and some flowers have certain medicinal value, such as white chrysanthemum. However, flowers are also poisonous. Not all flowers can be cooked, and improper handling can easily cause adverse reactions such as allergies and poisoning. Therefore, before cooking cauliflower at home, be sure to find out whether the selected flowers can be eaten. Moreover, in the process of planting flowers, flower farmers may use a lot of chemical fertilizers and pesticides to "promote growth". Therefore, if you have not gone through health quarantine and pesticide residue detection, don't blindly adopt early adopters.
There is a saying that "drinking all kinds of scented tea has cosmetic effects", so drinking scented tea has gradually become a fashion at present, especially for white-collar workers. But Dr. Wang reminded everyone that many scented teas have side effects, and improper drinking will have adverse consequences.
Ms. Li, who is in her forties, is worried about her increasingly yellow face and freckles. Last summer, she heard that drinking scented tea can whiten the skin, so she began to fry the petals of roses, safflower, chrysanthemums and other flowers and drink them in large quantities every day as a daily drink. However, not long after, she found that the freckles on her face not only did not disappear, but also showed symptoms such as general fatigue and menstrual disorders. She went to a Chinese medicine hospital. The doctor thought that she had taken a lot of safflower and told her to stop taking scented tea. Before long, her discomfort completely disappeared.
Dr. Wang said that many flowers can be used as medicine, but they all have certain side effects, so they must not be used as health care products at will. For example, safflower can promote blood circulation and remove blood stasis, but if used improperly, it will cause menstrual bleeding or cardiovascular and cerebrovascular diseases, and pregnant women can lead to abortion; Hua Shuang has the effects of clearing away heat and toxic materials, reducing swelling and relieving pain, but it is not suitable for people with spleen and stomach weakness. Although chrysanthemum tea has the function of clearing away heat and toxic materials, it is not suitable for the constitution of yang deficiency mentioned in traditional Chinese medicine. Scented tea should not be consumed in large quantities for a long time, and should be selected scientifically and reasonably according to each person's specific situation under the guidance of a doctor.
Wild vegetables are fragrant but also afraid of "light"
According to reports, careless eating of wild vegetables may also cause dermatitis. After Tomb-Sweeping Day, a lady took her children for an outing, picked some wild vegetables and went home to cook. The next day, all three people in a family had different degrees of "skin reaction", that is, they felt itchy sensation on the face, back of hand and forearm, swollen eyelids, ecchymosis and papules. At first, they thought it was caused by sweating and sun exposure, but later it turned into blisters, and the child kept scratching when it was itchy and uncomfortable. After rupture, they form erosive ulcers. When they went to the hospital, they were diagnosed as "plant-solar dermatitis".
According to the doctor, some people suffer from this dermatitis after eating some wild vegetables and exposing their bodies to the sun.
It is understood that this is a phototoxic disease. Although the real cause is still unclear, it is clear that the patient's physique, taking photosensitive plants and sun exposure are the three inducing conditions of the disease. Some data show that people with liver and kidney diseases, endocrine disorders, abnormal metabolism, malnutrition or anemia are prone to this disease. The onset time is mostly concentrated in May to August. Young and middle-aged women are prone to occur, and the ratio of male to female is about 1: 4.
People with severe solar dermatitis often have systemic symptoms such as fever, dizziness, vomiting, diarrhea and even coma. After the recovery of skin lesions, there are many pigmentation, which can disappear after a few weeks, and deep ulcers will leave scars.
According to reports, because the disease is a phototoxic reaction and a non-immune reaction, the reaction intensity is more serious than the photosensitive reaction. The clinical manifestations are similar to second-degree burns. You must protect yourself from the sun during the treatment.
According to the literature, the photosensitive plants that can cause the disease are: cabbage, Chinese milk vetch, radish leaves, mustard leaves, elm leaves, Sophora japonica, amaranth, thorn leaves, figs, Chinese cabbage, spinach and rape, and Chinese herbal medicines such as Psoralea corylifolia, Peucedanum, and Agrimonia pilosa. There are more than 37 kinds of statistics in China. These plants are rich in furan coumarin, belonging to Rutaceae and Moraceae.
Patients with plant solar dermatitis must fast the plants listed above to prevent recurrence, and they should also avoid eating snails. Drugs that are easy to cause photosensitive reactions should also be used with caution.
interconnection
People in China have been eating bitter herbs for more than 2000 years. Moreover, our ancestors often used bitter herbs. Many ancient medical books in China, such as Compendium of Materia Medica and Jiayou Materia Medica, recorded the medicinal value of bitter herbs. For example, Shennong Materia Medica says that it is "bitter and cold, and it cares about the evil spirits of the five internal organs". Taking it for a long time can make people feel at ease and beneficial. Traditional Chinese medicine believes that bitter vegetables are cold, which mainly has three functions: clearing heat, cooling blood and detoxifying.
1, dandelion: It has the function of clearing away heat and toxic materials, and is a delicious food for patients with diabetes and hepatitis.
2, Portulaca oleracea: can diminish inflammation and detoxify, has the effect of preventing dysentery, and has a unique effect on gastritis, duodenal ulcer and oral ulcer.
3, shepherd's purse: can clear the liver and improve eyesight, stop bleeding, regulate the spleen and stomach, and lower blood pressure. Mainly used for dysentery, hepatitis, hypertension, gynecological diseases, eye diseases, children's rash and so on. There is a folk saying that shepherd's purse is a panacea.
4, wild amaranth: it has the effect of clearing heat and promoting diuresis, and can treat dysentery, enteritis, bladder stones, goiter, sore throat and so on.
5, bitter vegetables: the effect is to clear heat, cool blood, detoxification, can cure dysentery, jaundice, anal fistula, snake bites and so on.
6, bracken: the effect is to clear heat, diuresis, benefit qi, nourish yin, used for high fever, dizziness, muscle aches, urination and so on.
7, Bidens bipinnata: also known as a pinch of needles, sticky grass, thorn grass, cecum grass and so on. Panicum in Compositae is mild in nature, bitter in taste and non-toxic. Modern pharmacology has proved that Bidens bipinnata contains flavonoid glycosides, saponins, tannins, polyphenols, coumarin, picroside, iodine, choline, amino acids, vitamins and other components, which has a good regulating effect on human blood pressure. Bidens bipinnata is commonly used to treat hypertension in China, and the effect is remarkable. Bidens bipinnata is unique in that the blood pressure of patients with hypertension can be reduced to normal after taking medicine, and those with low blood pressure can increase blood pressure, while those with normal blood pressure have no change. It is indeed a specific drug for preventing and treating hypertension, cerebral thrombosis and coronary heart disease.
8, Platycodon grandiflorum: alias for bitter Platycodon grandiflorum. Has expectorant and antitussive effects. Indications: exogenous cough, unpleasant expectoration. Originally wild in hillside grassland, it grows best in a warm and humid environment of 20℃, but it can also withstand the low temperature of -2 1℃.
9. Allium mongolicum Regel: According to Mongolian Pharmacopoeia, Allium mongolicum Regel has the special effects of lowering blood pressure, lowering blood fat, stimulating appetite and promoting digestion, tonifying kidney and strengthening yang, and treating constipation. Eating it can treat red and white dysentery, enteritis, diarrhea and chest obstruction. Known as "Ganoderma lucidum in vegetables".
Although the above-mentioned wild vegetables have been recognized as medicinal value by Chinese medicine, they must be taken after consulting a doctor.