What foods should not be eaten in summer?

It is easy to get enteritis in summer. Don't be greedy for four kinds of food. Summer is coming. It's time for the cat eaters to eat and quit. There will be a lot of fruits and vegetables in summer, but do you know? Some things can't be greedy: leek: It's not as delicious as jiaozi, but the leek stuffing is better, and the organophosphorus pesticide residue in leek is relatively high in the recent national sampling. After a large number of organophosphorus pesticides enter the human body, it will cause nervous system disorder, and the poisoned person will have symptoms such as hyperhidrosis and language disorder. Even if you eat leeks, try to soak them in light salt water for more than half a day. Why does leek become a "poisonous dish"? Every time an expert goes to buy leeks, she never puts them in her basket with thick leaves, oily green colors and thick heads, because she knows that these beautiful-looking leeks are all "fed" by pesticides. People should brush their teeth and rinse their mouths after eating leeks, for fear that the special smell in their mouths will affect others. That is, the special taste of leek makes it have the function of expelling general pests, so we rarely see traces of insect bites on leek leaves. Leek is not afraid of insects, why use pesticides? It turns out that the pests that can bring fatal harm to the growth of leeks are "underground workers". Experts say that the most serious pest of leek is leek maggot, which lives underground and eats the roots of leek, causing the roots of leek to rot and break, making it unable to grow. Leek is a perennial plant and can be cut several times at a time. If the roots are bitten by insects, the leeks on the ground will naturally die. Generally sprayed pesticides are ineffective against leek pests. Only root irrigation can effectively remove leek maggots, that is, pesticides must be applied to the underground and roots of leeks. Professor Wang Kaiyun, who is engaged in the research of pesticides and pests in Shandong Agricultural University, said that the maggot-killing pesticide used by many farmers is called "39 1 1", and its chemical name is phorate, which is an organic phosphorus systemic pesticide and belongs to the pesticide prohibited by the state from being used on vegetables. Although it is a banned drug, this pesticide can not only effectively eliminate pests, but also promote root development. It has the function of fertilizer, making leeks grow stout, green in color, plump in leaves, "healthy" in appearance and cheaper than other pesticides. Another reason for the excessive pesticide residues in leeks is that leek farmers have not strictly observed the regulations on pesticide use. According to the national regulations, pesticides are not allowed to be used again from 15 to 20 days before vegetable harvest, in order to ensure that the residual pesticides in vegetables have sufficient photolysis time within this 15 to 20 days. Because the organophosphorus pesticides recommended by the state are all soluble in water and have short photolysis time (although "39 1 1" also belongs to this kind of drugs, it is too toxic, so it is forbidden), so some vegetable farmers often shorten the interval between root irrigation and leek harvesting in order to get the leek on the market early, so it is too late to degrade the pesticides. Experts on how to identify toxic leeks also asked reporters to explain to readers that the reason why we say that there are so many pesticide residues in leeks is to tell everyone that there is a wrong understanding when buying leeks, not that leeks cannot be eaten. As long as you master the scientific identification method, you can safely eat leeks. Experts introduced three aspects that should be paid attention to when eating leeks: first, learn to "observe words and observe colors" to pick leeks: when looking at colors, don't pick those that look particularly oily green; Second, look at the size, don't choose a particularly thick one; Third, look at the leaves, not too thick. Second, buy less and eat less as far as possible to reduce the possibility of being harmed by pesticides. Third, if you like to eat leeks, give them a bath: because the pesticides used at present are all organophosphorus, which are easily soluble in water, soaking them in clear water after buying them, and then washing them with clear water will reduce pesticide residues. Broad beans: New broad beans are on the market in early summer. People with a family history of broad beans, especially boys under three years old, must fast fresh broad beans. Once eaten by mistake, if you have symptoms such as jaundice and hemoglobinuria, it is an acute hemolytic disease and you should seek help from a doctor immediately. Whenever broad beans are harvested and put on the market, it is also a time when people are prone to "bean disease" (commonly known as bean yellow). Silkworm bean disease is called erythrocyte-glucose phosphate dehydrogenase deficiency in medicine. This is a hemolytic reactive disease with jaundice and anemia as the main manifestations, which is caused by the sensitivity of human body to "toxic substances" in broad beans after eating them or contacting their pollen. This disease is more common in children, and male patients account for more than 90%. Clinical manifestations: symptoms began to appear after eating broad beans 1 ~ 2 days. Early symptoms include anorexia, fatigue, low fever, nausea and uncertain abdominal pain, followed by yellow staining of canthus and hemolytic jaundice, soy sauce color urine and anemia. Severe cases include urine ball, shock, cardiac function and renal failure, and fixed eye deviation can also be seen when severe hypoxia occurs. At this time, if you don't rescue in time, you can die within one or two days. Therefore, patients with the above symptoms should be sent to the hospital immediately for treatment without delay to avoid accidents. Silkworm bean disease is very harmful to human body, but it can be prevented. As long as people (especially children) don't eat fresh broad beans raw, eating a lot of broad beans at a time or eating them continuously can be avoided. In addition, patients with hereditary red cell deficiency, hemorrhoid bleeding, dyspepsia, chronic colitis, uremia and so on. Don't eat broad beans. Eating fresh broad beans should be cooked at high temperature for a long time. When eating dried broad beans, it is necessary to soak them in water for many times and then cook them for a long time, which can also destroy the toxic substances in them. Pickled pickles: Pickled pickles are often inseparable from many family tables. Synthetic preservatives such as benzoic acid and sorbic acid are widely used in the production of these side dishes. Those kimchi whose index exceeds the national standard will do harm to human body. Do not buy food from unlicensed vendors. At present, there are hundreds of large condiment enterprises in China, all of which regard pickles as one of the leading products. There are more and more kinds and manufacturers of kimchi, but the quality of kimchi products is not optimistic. It is understood that some manufacturers' kimchi products have excessive additives, including sweeteners such as sodium cyclamate and saccharin, and chemical preservatives such as sorbic acid and benzoic acid. The additives of some kimchi products greatly exceed the national mandatory standards, which are harmful to consumers' health. In addition, some unscrupulous traders produce fake pickles. Because the underground processing places of illegal vendors are filthy, it is difficult for the pickles produced to meet the hygiene standards. Pickles produced by these informal channels often flow into bazaars. At a market in Fengtai District, Beijing, our reporter often sees pickles sold without packaging and health protection measures. These pickles look plain and the containers are simple, but many consumers still buy them. According to a person from the National Food Quality Supervision and Inspection Center, there are three common problems in pickles at present: excessive use of benzoic acid preservatives; Excessive use of saccharin sodium; Saccharin; The sorbic acid content exceeds the standard. In addition, all supermarkets in Beijing have special counters for bulk pickles. Because of long-term exposure to the air, bulk kimchi will not only be oxidized, but also be polluted. So, how to choose pickles? According to insiders, the best pickles should be delicious. High-quality kimchi is crisp, tender, refreshing and elastic; Bright and translucent color; Moreover, it exudes the fragrance of pickles, without sour taste and peculiar smell, but with freshness. The taste of pickles should not be too salty, without bitterness and lettuce flavor. According to reports, inferior pickles not only lack the rich and pure sauce flavor of high-quality pickles, but also have bad smells such as acid and odor. The juice of inferior kimchi is turbid and often contains many impurities. Some inferior pickles have sticky surfaces and white film spots. Experts remind consumers that bottled pickles are not easy to identify, and buying brand-name products in regular supermarkets is the best way. Remember not to buy pickles from unlicensed vendors. Flowers: Many people think that "eating flowers" can not only beautify the face, but also be beneficial to health. Many restaurants also try their best to introduce all kinds of "cauliflower", such as chrysanthemum, celery, lily, osmanthus, scallop, etc. Some restaurants also advertise cauliflower as authentic green food. According to flower experts, flowers are not only good in color, fragrance and taste, but also rich in nutrition. Flowers are rich in protein, starch, amino acids, multivitamins and some essential trace elements. These nutrients can not only supplement the substances that the human body lacks, but also strengthen the body, beauty beauty. There are 100 kinds of flowers used as medicine, and there are more than 20 kinds of flowers suitable for making tea. The ingredients of scented tea have multiple functions. Rose tea can be used for malaria, tongue coating erosion and irregular menstruation. Rose tea can regulate qi and relieve depression, soothe the liver and strengthen the spleen, and can be used for double rib pain, nausea and vomiting, dyspepsia and other symptoms caused by stagnation of liver qi. Rose tea is mainly used to treat blood heat and skin itching; Plum blossom tea can be used to treat anxiety and thirst caused by heat or stomach yin injury; Jasmine tea is used for colds, fever, head swelling, nausea, eating less and urinating less in summer; Sophora japonica tea is used for hypertension, preventing cerebrovascular accidents, resisting aging and prolonging life, and preventing the occurrence of excessive internal heat and hemorrhoids after staying up late. According to the determination of relevant health departments, although flowers contain trace elements beneficial to human body. However, some flowers are also "toxic", and improper handling can easily cause allergic or even toxic reactions. First of all, it is worth noting that in the process of planting flowers, in order to make peanuts grow faster and brighter, flower farmers use a lot of chemical fertilizers and pesticides, and the flowers used in many food stores have not passed health quarantine and pesticide residue inspection. Secondly, flowers are gorgeous. Chrysanthemum in flowers is a beneficial and harmless flower; Peony and hydrangea are poisonous flowers; Chinese rose, lotus, Sophora japonica, etc. All have pharmacological effects and must be eaten symptomatic. Third, the human body is different, and everyone's skin and physique are different. Eating flowers is good for people, but not the same. According to experts, most flowers can't be eaten casually. At present, there have been many reports of human allergy and poisoning caused by edible flowers. Therefore, people should be cautious about those "flowers and plants" who don't know their roots.