The main points to prevent food poisoning are as follows: 1. Pay attention to maintaining hygiene, ensuring clean hands and clean food; avoid eating raw and cold seafood and drinking raw water; 2. Food needs to be cooked thoroughly, do not eat food of unknown origin, avoid eating poisonous mushrooms, do not eat sprouted potatoes, puffer fish, etc.; 3. Avoid nitrite poisoning and try to avoid eating pickled foods, especially those that have been pickled for more than 20 days ;4. Avoid eating food placed in the refrigerator overnight.