Green Tomatoes: Due to their solanine content, they have a strong irritant effect on the gastrointestinal mucosa and a paralyzing effect on the central nervous system, causing symptoms such as vomiting, dizziness, and salivation. Raw consumption is particularly hazardous.
Rootless Bean Sprouts: Most rootless bean sprouts sold on the market are grown using hormones and chemical fertilizers. These nitrogenous compounds can be converted into nitrosamines by intestinal bacteria, and long-term consumption may lead to stomach, liver, esophageal, and colorectal cancer.
Undercooked Green Beans: Eating undercooked green beans, or beans with a green exterior, can cause poisoning, leading to dizziness, vomiting, and in severe cases, even death.
Sprouted and Green Potatoes: Like green tomatoes, these potatoes contain solanine and should not be consumed.
Fresh Daylilies: Although fresh, daylilies contain colchicine, which, after being oxidized in the body, can cause poisoning symptoms such as abdominal pain, diarrhea, and vomiting. If fresh daylilies are soaked in water for a sufficient time to dissolve the colchicine, these symptoms will not occur.
Discolored Seaweed: If seaweed soaked in cold water turns bluish-purple, it indicates that the vegetable was contaminated by toxic substances before drying and packaging. This seaweed is harmful to the body and must not be eaten.