News reports of "food poisoning" are commonplace. These toxic foods aren't obscure vegetables or fruits, but rather items frequently found on our dining tables. The primary reason these common foods cause poisoning is inadequate cooking. Stay vigilant to avoid falling victim to such mishaps!We've compiled a list of 8 foods that become toxic when undercooked—read on carefully. 1. Soy Milk Undercooked soy milk contains a highly lethal toxin: saponins.Saponins in raw soybeans are particularly "tricky" toxins. When boiling soy milk, temperatures around 80°C cause saponins to expand and foam, creating a "false boil" illusion. However, the soy milk remains undercooked, leaving saponins and other toxins intact. Consuming such undercooked soy milk can lead to food poisoning.Symptoms typically appear 0.5 to 1 hour after consumption, manifesting as gastroenteritis. 2. Green Beans Like raw soybeans, green beans contain saponins. Eating them undercooked can cause poisoning and gastroenteritis. Furthermore, green beans contain nitrites and trypsin inhibitors. Eating them undercooked or leaving cooked beans sitting for too long can irritate the digestive tract.
3. Shepherd's Purse
Nitrites, present in many pickled foods, can form the carcinogen ammonium nitrate. Vegetables like shepherd's purse also contain nitrites, with levels significantly higher in leftovers.Uncooked shepherd's purse can oxidize normal hemoglobin in the body into methemoglobin and inhibit the release of oxygen from oxygenated hemoglobin. This leads to tissue hypoxia and poisoning.
4. Cassava
Cassava contains the lethal toxin linamarin. Consuming 150-300 grams of raw cassava can cause poisoning, with severe cases resulting in death.
5. Broad Beans (Fava Beans)
Broad beans are a common food. Raw broad beans contain lupeol glycoside. Eating undercooked broad beans can cause acute hemolytic anemia, also known as favism. This condition peaks in spring and summer, primarily due to food poisoning, with symptoms typically appearing 4-24 hours after ingestion.
6. Daylily buds
Colchicine, a component in daylily buds, is difficult to fully cook out. Cases of nausea, diarrhea, and vomiting from undercooked daylily buds are common, caused by this compound. However, colchicine itself is not toxic; it reacts with the digestive tract to form highly poisonous dicholchicine.D-colchicine irritates the gastrointestinal tract. Consuming 50-100 grams of raw daylilies can cause symptoms like heartburn, vomiting, and diarrhea.After consuming raw wood ear mushrooms, exposure to sunlight can cause photosensitive dermatitis. Severe cases may develop throat swelling and breathing difficulties. 8. Green Tomatoes While tomatoes are safe to eat raw, unripe green tomatoes should not be consumed. They contain solanine, which causes a bitter taste and can lead to poisoning symptoms.