Yes, potatoes germinate and produce a toxin called solanine. Good quality potatoes only contain solanine 10 mg per 100 g, while solanine in green, germinated and rotten potatoes can be increased by 50 times or more. Eating a very small amount of Solanum nigrum is not necessarily harmful to the human body, but if you eat 200 mg of Solanum nigrum at a time (about half of the potatoes that have turned green and sprouted), it will take 15 minutes to 3 hours to get sick. The earliest symptoms are itching in the mouth and throat, pain in the upper abdomen, nausea, vomiting, diarrhea and other symptoms. Those with mild symptoms will heal themselves through their own detoxification function after1~ 2 hours. If you eat 300 ~ 400 mg or more of Solanum nigrum, the symptoms will be very serious, such as increased body temperature and repeated vomiting, resulting in dehydration, dilated pupils, fear of light, and so on. Therefore, patients with severe symptoms should be sent to hospital for treatment as soon as possible.

Attention must be paid to the prevention of potato solanine poisoning.

Don't eat immature green potatoes.

The slightly sprouted and blue parts and rotten parts on potatoes should be thoroughly removed. If the potato has a large blue area and many sprouting parts, you should throw it away.

Cut peeled potatoes into small pieces and soak them in cold water for more than half an hour to dissolve the remaining solanine in water.

Taking advantage of the weak alkalinity of Solanum nigrum, adding proper amount of rice vinegar when cooking potatoes, and decomposing Solanum nigrum by using the acidity of vinegar can play a detoxification role.

Cooking potatoes should be crispy and thoroughly burned, and the solanine can be partially decomposed by using high temperature for a long time.

If you feel a little numb in your mouth when eating potatoes, it means that the potatoes still contain more solanine, so you should stop eating them immediately to prevent poisoning.

It has been reported that if pregnant women eat too much Solanum nigrum, it may cause fetal malformation, so pregnant women should be especially careful.