Because it contains solanine, it has a strong stimulating effect on gastrointestinal mucosa, paralyzes the central nervous system, causes vomiting, dizziness, salivation and other symptoms, and is more harmful to eat raw.
Rootless bean sprouts:
Most of the rootless bean sprouts sold in the market now are produced by hormones and fertilizers. Under the action of intestinal bacteria, these nitrogen-containing compounds will be converted into nitrosamines, which can cause people to suffer from gastric cancer, liver cancer, esophageal cancer, rectal cancer and so on.
Uncooked green beans:
If you eat undercooked green beans or green beans, you will be poisoned, leading to dizziness, vomiting and even death in severe cases.
Germinated and green potatoes:
This kind of potato, like green tomato, contains solanine and is not suitable for eating.
Fresh day lily:
Although the fresh day lily on the market is fresh, it contains narcissin, which will cause abdominal pain, diarrhea, vomiting and other poisoning symptoms through oxidation after entering the human body. If fresh daylily is fully soaked in water to make narcissin dissolve in water to the maximum extent, the above symptoms will not appear.
Porphyra discolor:
If the laver soaked in cold water is blue-purple, it means that the dish has been contaminated by toxic substances before drying and packaging. This kind of laver is harmful to human body and can't be eaten.