Beans are also called vegetable beans, plum beans, kidney lentils, etc., and are collectively known as four-season beans, and beans are the name of the northeasterners. The main cause of bean curd poisoning is that people eat a lot of uncooked bean curd stew. The bean curd contains a toxic protein called lectin, and some bean curd contains saponins, both of which can cause damage to human health. However, both toxins are intolerant of high temperatures, and under the effect of high temperatures, the toxins will be broken down and lose their toxicity. If stewed or fried bean curd time is too short, bean curd is not yet cooked, half-cooked bean curd, still contains toxic proteins and saponins, especially some people like to eat fresh crispy bean curd, this bean curd contains more toxins, eaten will be poisoned. In addition, some people like to hot bean curd with boiling water, and then cut into shreds, mixed with cold dishes to eat. This way of eating is also very dangerous, because it is not possible to make the toxins inside the bean curd completely decomposed by scalding, poisoning occurs from time to time. Poisoning performance: 1, nausea, vomiting, abdominal pain, bloating, diarrhea, stomach discomfort and other gastrointestinal symptoms. 2. In severe cases, dizziness, headache, panic, chest tightness, cold sweat, numbness of limbs, etc. may appear. Emergency treatment: 1. The most important method is to avoid poisoning, whether stewed, fried or boiled, make sure to cook it. 2.Once the symptoms of poisoning appear, immediately stimulate the throat with your index finger and spit out the food you have eaten. 3. If symptoms appear only after a few hours of eating, you should fast, replenish fluids intravenously, and give diuretics to promote toxin excretion.