Usually the course of bean curd poisoning is short, through active rescue, within 1-2 days, or even a few hours can be fully restored to health, but also varies from person to person. Bean curd contains an alkaloid called saponin, this alkaloid has a strong stimulation of the mucous membrane of the digestive tract, will cause gastrointestinal reaction, eating uncooked bean curd will be poisoned. If thoroughly cooked, saponin will be completely destroyed, will not cause poisoning. If you eat uncooked bean curd, you will have an attack within 1-2 hours, and the main symptom is the manifestation of gastroenteritis, such as nausea, vomiting, fatigue, dizziness, and even the discharge of loose stools, pus and blood stools, the patient vomits very often, and even up to more than 10 times, and some patients have numbness of the limbs, the burning sensation of the gastrointestinal tract, and the sensation of heartburn and back pain, and so on. For patients with mild poisoning, they should rest in bed and drink a small amount of sugar and salt water or strong tea. For patients with moderate to severe poisoning, it may cause dehydration, and even the manifestation of hemolysis, and need to go to the hospital in time to seek medical treatment.