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Can wild vegetables dug up in the park be poisonous?

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Recently, the media reported that for convenience, some citizens frequently "dig wild vegetables" in major parks. So, can the wild vegetables dug in the park be eaten? How to eat wild vegetables safely and healthily?


Digging Wild Vegetables Should Choose Non-polluting Environment


Plant experts say that the water used to irrigate vegetation in the park is not up to drinking standards; some wild vegetables are toxic.


"It's better to go to the vegetable market to buy ready-made wild vegetables, because it's very difficult to ensure the safety of wild vegetables to pick by oneself." Picking of wild vegetables must be in a non-polluting environment, especially in congested roadside and industrial polluted areas.


When picking wild shepherd's purse, more attention should be paid. Many weeds are similar to shepherd's purse in appearance, and it is difficult for ordinary people to distinguish them. These weeds themselves may contain toxicity and cannot be eaten. It is suggested that people with experience in picking should accompany them safely.


What kinds of wild vegetables are in season in spring?


"After this spring, there will be no such freshness." In life, the most commonly eaten wild vegetables are shepherd's purse, purslane, houttuynia, etc. While enjoying delicious food and nutrition, special attention should also be paid to cooking methods and food taboos.


Nutrition experts believe that shepherd's purse is not only delicious, nutritious, rich in a variety of amino acids, but also the most delicious kind of wild vegetables. In addition, shepherd's purse is also of high medicinal value. It has the functions of harmonizing spleen, diuresis, hemostasis and clear purpose. It is also rich in vitamin C and carotene, which helps to enhance the immune function of the body.


"Shepherd's purse can be made into soup, fried vegetables, salad, wonton and so on are also good choices, according to their own tastes vary from person to person." The shepherd's purse should not be cooked for a long time, which will destroy its nutrients and make its color yellow.


Special attention should be paid to the fact that shepherd's purse is not suitable for people with deficient and cold constitution.


Portulaca oleracea is also a common wild vegetable. Experts said that Portulaca oleracea is not only edible, but also medicinal value, with heat clearing, detoxification, bactericidal and anti-inflammatory effects. Portulaca oleracea L. can be used to mix stuffing with meat, or cold dressing after boiling water, pot porridge soup, etc. are good choices. However, Portulaca oleracea is a cold food. People with weak spleen and stomach, often prone to diarrhea and pregnant women should eat less. In addition, it is better not to eat with pepper and turtle shell.


Which people should not eat wild vegetables?


Modern people pursue seasonal wild vegetables, in addition to tasting fresh, more is that the nutritional value of wild vegetables is high. In this regard, plant experts said that the nutritional value of wild vegetables is not as high as legendary, and people with spleen and stomach deficiency and cold are not suitable for eating wild vegetables.


Recently, there are also reports that some people eat Portulaca oleracea, not long after the emergence of allergic reactions, itching on the face and hands, red. Dermatologists explained that, like gray cabbage, amaranth, Portulaca oleracea, even rape and celery, which are commonly eaten in life, can be decomposed into photosensitive substances in the human body. Some people are very sensitive to this photosensitive substance. If they eat too much, these photosensitive substances will accumulate in the body. When they reach a certain concentration, the bare parts of the human body, such as the skin meridian of the face and hand, can be decomposed. After direct sunlight exposure, it can lead to metabolic disorders and induce dermatitis, which is called "solar dermatitis" in medicine.


Although wild vegetables are delicious and nutritious, some may contain allergenic substances. Therefore, people with allergic constitution are prone to allergic reactions after eating. Doctors suggest that once the occurrence of "solar dermatitis", the first thing to stop eating vegetables and wild vegetables related to the disease, and avoid sunshine, if allergic symptoms are serious, you can take drugs under the guidance of doctors.


In life, we often hear about poisoning caused by eating wild vegetables. Lu Zhaoxin, chief physician of Emergency Department of Qingdao Haici Medical Group, reminded us that if the time of taking the suspected poisoned wild vegetables is not long, the first step is to spit out the wild vegetables we eat. We can take some saline water and then pick up the throat to stimulate vomiting. The cleaner the vomiting is, the better. If there is a very critical situation, we should call 120 urgently to the hospital for professional treatment.


Three principles should be followed in edible wild vegetables


Experts pointed out that the right way to eat wild vegetables: First, do not know whether to eat. Don't pick wild vegetables beside roads, ditches and suburban chemical plants. Some wild vegetables resemble poisonous plants in appearance and are difficult to distinguish. Don't pick and eat wild vegetables unfamiliar to you.


Second, salt water immersion. Many impurities and fungi are attached to wild vegetables. After washing, they are soaked in dilute salt water. It is recommended that they should not be less than 1 hour.


Thirdly, it is hot before eating. Some wild vegetables are slightly poisonous. If you boil them in hot water before eating, the bitterness of the wild vegetables will be removed and the taste will be better. If nausea, vomiting, diarrhea and other suspected food poisoning symptoms occur after eating wild vegetables, we must immediately stop eating.


Following these three points, we can basically ensure the safety of food.


"Most of the wild vegetables in life are medicinal and food homologous. Every kind of wild vegetable has different effects. For different people, they should choose different kinds of wild vegetable according to their constitution. Doctor Xu Pengfei, Preventive Medicine Department of Qingdao Haici Medical Group, introduced that dandelion could alleviate acute mastitis, gastritis and hepatitis; shepherd's purse could promote digestion, reduce blood pressure and invigorate deficiency and spleen; clam could clear heat and detoxify, stop cough and stop bleeding.


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