Top 14 Most Dangerous Foods in Vietnam

Despite its toxicity, many still prepare catfish dishes for consumption. The internal organs of catfish contain a toxin, tetrodotoxin, for which no antidote has been found to date.

If the cook or the consumer is exposed to even a tiny amount of this toxin, it is enough to cause immediate death. A famous Japanese Kabuki actor also suffered poisoning due to this highly toxic food.

This is considered a dish favored by many people; however, this type of food hides numerous bacteria such as hepatitis A, dysentery, typhoid... When blood clams are processed into grilled, steamed, or raw dishes, these bacteria are challenging to eliminate, and in some cases, they may become superbugs causing poisoning.

Especially, it is advised that women during pregnancy should avoid consuming this type of food because the high amount of retinol in blood clams can lead to congenital defects in the fetus. Therefore, caution should be exercised in the preparation before eating blood clams.

Jellyfish is increasingly becoming a popular dish in seaside restaurants. This marine creature contains numerous toxins concentrated in stinging cells known as Nematocysts. Some jellyfish species have millions of nematocysts that can be fatal to consumers.

Jellyfish can be used for culinary purposes, but it should not be raw jellyfish (unprocessed). Absolutely do not eat live jellyfish salad or use it as food for children.

Cassava is a tuber that is very popular among many people for its sweet taste, cooling nature, and versatility in cooking. However, this type of food contains Linamarin, which, when in the body, converts to xianua, a compound that is highly toxic to the body. Particularly, this substance has a much higher content in high-yield cassava - a type of bean commonly used to produce sweet powder or feed livestock. Therefore, extreme caution is required when eating and processing this type of food.

In addition to the edible tuber, the leaves and seeds of the cassava plant can be used as topical medicine. However, never consume the leaves and seeds as they contain tephrosin and rotenone. These substances, when entering the body, can cause poisoning, severe abdominal pain, full-body seizures, irregular heartbeat, blood pressure drop, and respiratory failure. The seeds of the cassava plant contain the non-edible toxic component Rotenone, used for making insecticides and treating skin diseases (scabies, sores).

If one eats the seeds of the cassava plant, symptoms of poisoning will appear between minutes 5-40. Symptoms can progress rapidly and, in severe cases, death can occur within 2-5 hours. If well controlled, the most severe symptoms can resolve after 4-7 hours. Therefore, when buying a bunch of fresh cassava for processing, always cut off the leaves.

Chili pepper is used as a spice to enhance the flavor of various dishes, especially for those who enjoy spicy food. However, few people are aware that the toxin content in chili peppers is more than three times higher than in mustard gas, and adults can be fatally poisoned with just 4g of chili peppers.

In some places, especially in India, chili peppers are used to deter the disruption of wild elephant herds. According to leaked sources, the Indian military is researching the development of weapons made from chili peppers.

Frog meat is high in protein and zinc, making it beneficial for malnourished children. However, some parts of it contain bufotoxin - a deadly toxin that can cause rapid death.

Prof. Dr. Nguyen Thi Lam, former Deputy Director of the National Institute of Nutrition, notes that frog meat has higher protein and zinc content than other meats such as beef and pork, making it suitable for the elderly and malnourished children. However, frog meat also contains a toxic substance that can be dangerous to human life if not handled carefully.

Prof. Dr. Nguyen Tien Dung, Pediatrics Department, Bach Mai Hospital, Hanoi, also warns that consuming frog liver and eggs is safe, while frog skin (behind the ears, above the eyes, and skin glands) and the liver and ovaries can cause poisoning due to bufotoxin, which can be fatal in a very short time.

Therefore, experts strongly advise against consuming frog liver and eggs. Additionally, during the meat preparation process, if these parts come into contact with frog meat, it can be very dangerous.

Star fruit is a delicious and health-beneficial fruit. However, in some cases, it can have adverse effects such as poisoning, allergies, drug interactions...

People with kidney problems and those taking medication should consult a doctor before consuming star fruit. The fruit contains a high level of oxalates that can lead to kidney stones. Individuals with kidney issues who eat star fruit may experience star fruit poisoning with symptoms including confusion, seizures, and even death.

Some studies indicate that the neurotoxin in star fruit can affect the brain and cause neurological disorders. In healthy individuals with well-functioning kidneys, the body can eliminate this neurotoxin. However, those with kidney disease lack this capability. As a result, after consuming star fruit, the toxin may persist in the body of individuals with kidney disease, leading to severe poisoning.

Linamarin is a toxic substance found in bamboo shoots. A study on three types of bamboo shoots, namely white bamboo shoots (derived from bamboo shoots), white bamboo shoots soaked in water for half a day, and yellow bamboo shoots, which are boiled and soaked in water available in the market, all showed alarming levels of linamarin.

The linamarin present in bamboo shoots gradually decreases when exposed to water. However, for sour bamboo shoots, during the soaking process, linamarin can combine with some enzymes or interact with certain substances in the human intestine, causing acute poisoning. Therefore, when processing bamboo shoots, it is advisable to follow traditional experience: wash thoroughly, soak bamboo shoots in water for several hours, and boil them 1-2 times before consumption to avoid poisoning.

The bile of fish contains a steroid alcohol called 5α-cyprinol. After entering the stomach, it is absorbed into the blood and reaches the liver and kidneys, causing acute liver and kidney failure.

Symptoms appear 1-2 hours after consuming fresh fish bile: Patients experience discomfort, abdominal pain, nausea, or diarrhea. One day later, urine output decreases, and the patient may develop leg swelling, headaches, high blood pressure, mild jaundice, leading to kidney and liver failure. In severe cases, it can be fatal if not promptly treated at the hospital for blood purification. Note that consumption or swallowing of this type is not recommended.

Cashew nuts are hailed as an anti-cancer food, nourishing for hair and skin, beneficial for bones, aiding in weight loss, and preventing gallstones, among other health benefits. However, inadequately stored cashew nuts, exposed to air for extended periods, can develop mold, oxidize fatty acids, and produce toxic substances, posing a potential risk of cancer.

Raw cashew nuts contain urushiol, a toxin. Consuming a large quantity of cashews with this toxin can be fatal. When purchasing, it is essential to check whether the cashews have been steamed. Only buy and consume cashews that have been processed by steaming.

Sprouted potatoes contain solanine, a bitter and toxic glycoalkaloid with sedative properties. Additionally, the leaves and stems of potato plants naturally have high levels of glycoalkaloids. When potatoes turn green, it indicates a potentially dangerous level of solanine. Therefore, one should avoid consuming the green parts of the tuber.

Solanine imparts a bitter taste to potatoes after cooking. Ingesting small amounts of solanine and alpha-chaconine found in potatoes can lead to digestive issues such as abdominal pain, nausea, and diarrhea. In more severe cases of poisoning, symptoms may include drowsiness, paralysis, slowed responses, abdominal pain, impaired vision, and vomiting. A high concentration of solanine in the body can be fatal.

Green tomatoes contain solanine, a relatively toxic alkaloid (similar to the one found in potato sprouts). When tomatoes ripen, solanine is no longer present. Ancient people might have experienced poisoning from consuming green or partially ripe tomatoes, leading to a prolonged distrust of green tomatoes.

Similar to potatoes, green tomatoes contain the toxic substance solanine, which can cause poisoning. Common symptoms after consuming green tomatoes include headaches, dizziness, and vomiting. Experts recommend removing the seeds when preparing tomatoes. Eating raw green tomatoes is not conducive to good health.

In reality, there are many types of mushrooms: some are edible, while others are poisonous. Poisonous mushrooms are often found in forests during the rainy season or wild mushrooms growing by the roadside. Poisonous mushrooms are divided into two groups: those causing early symptoms of poisoning within 6 hours after consumption, such as amanita muscaria, anipantherina, red mushrooms, or sun mushrooms. Poisoning symptoms include nausea, vomiting, diarrhea, muscle spasms, muscle pain, hallucinations, typically not leading to death.

The group of highly toxic mushrooms, causing high mortality, includes amanita phalloides, A. ocreata, A. verna, etc. Poisoning symptoms in this group appear late, 6-24 or 48 hours after consuming the mushrooms, with signs such as nausea, vomiting, abdominal cramps, diarrhea, decreased urination, dark urine, yellowing of the eyes, liver and kidney failure. The risk of death is very high if not detected and treated promptly. Therefore, only buy and consume mushrooms that you are certain are safe. Never purchase or eat unfamiliar mushrooms to ensure the safety of yourself and your family.

Fresh Fly Agaric Mushrooms contain a light-sensitive substance - Porphyrin. After consumption, exposure to sunlight can easily lead to skin inflammation, itching, swelling, pain, and, in individuals with swollen larynx, difficulty breathing. Therefore, it's safe to consume only dried fly agaric mushrooms soaked in water before cooking.

Avoid eating fresh fly agaric mushrooms because they contain light-sensitive morpholine. If the body is exposed to light after consuming fresh fly agaric mushrooms, it can cause itching, swelling, and, in severe cases, lead to serious skin necrosis.