Sweet potato is indigestible when eaten raw, also known as sweet potato, sweet potato, sweet potato, sweet potato, red taro, etc. There are many names, which contain protein, carbohydrates, multivitamins and 9 kinds of amino acids, especially the amino acids necessary for human body are high.
Sweet potato is also rich in starch, but the cell membrane around the starch is not destroyed by high temperature when eaten raw, so it is not easy to be digested and absorbed by the human body, which makes people feel bloated and uncomfortable after eating.
Cold eating sweet potatoes can cause bloating. After cold eating sweet potatoes, it is easy to have symptoms such as stomach and abdomen discomfort and acid water.
Carrots should not be eaten raw. Carrots are rich in nutrients, among which carotene content is among the best in vegetables. Carotene is converted into vitamin A by enzymes in the small intestine. Vitamin A has important physiological functions, such as maintaining the normal function of epithelial cells, preventing and treating respiratory infections, promoting the growth and development in vivo, and participating in the formation of rhodopsin.
But carotene is a fat-soluble substance. Only when it is dissolved in oil can it be converted into vitamin A in human liver and absorbed by human body. If carrots are eaten raw, 90% of carotene will become a "passer-by" of the human body and be excreted, which will not play a nutritional role.
Fresh lotus root can nourish the heart and stomach, nourish yin and nourish blood, and eating lotus root can also cool blood and disperse blood stasis. However, fresh lotus root should not be eaten raw, because raw lotus root is parasitic with parasites (such as ginger worm), which can easily cause ginger worm disease, mainly causing intestinal injury and ulcer, causing abdominal pain, diarrhea and indigestion.
Cassava can be poisoned when eaten raw. Cassava has great economic value and can be made into starch. Some areas in southern China have the habit of eating cassava, but cassava cannot be eaten raw.
Because cassava is a plant containing cyanosides, which can release hydrocyanic acid after being hydrolyzed by enzymes or acids. Hydrocyanic acid is protoplasm poison. When it is absorbed, cyanide ion will combine with iron in cytochrome oxidase in human body, which will make respiratory enzyme lose its activity, and oxygen can't be used by cells and tissues, which will lead to hypoxia and suffocation.
The main symptoms of poisoning are nausea, vomiting, burning, chest tightness, dyspnea and irregular breathing.
Tomatoes should not be eaten raw. Tomatoes are commonly known as tomatoes. The flesh is tender, sweet and sour, and nutritious. In life, people are used to eating some vegetables raw or cold, and tomatoes are one of them. Some people even think that eating tomatoes raw can replace eating fruits. In fact, eating tomatoes raw is not only nutritionally impaired, but also equivalent to smoking, which makes nicotine mixed into the human body, which is not desirable.
Studies have found that people's commonly used vegetables, such as tomatoes, potato, eggplant and cauliflower, all contain different amounts of nicotine. In particular, if these vegetables are eaten raw without cooking, the amount of nicotine entering the human body will be more, and the harm caused by them will be close to that of passive smoking.
Raw bamboo shoots are easy to be poisoned. Bamboo shoots usually contain a kind of toxin called cyanogenic glucoside. If it is not cooked or undercooked, the toxin will be transformed into different substances, including hydrogen cyanide, which will destroy the respiration of cells and eventually kill them.
The poisoning symptoms of this kind of food are throat tightening, nausea, vomiting, headache, etc., and even death in severe cases.
Taro raw and itchy throat Taro should not be eaten raw, because the mucus in taro will stimulate the throat and make it itchy, while taro contains more starch, which will lead to bloating if eaten too much at one time.
Immature and indigestible peanuts are rich in vegetable oil, protein and vitamins, which is a favorite food for everyone, but eating peanuts raw is harmful to human body. Because peanuts contain more fat and are slowly digested and absorbed, if eaten raw too much, it will cause indigestion.
In addition, peanuts grow in soil and are often contaminated by parasitic eggs, and eating them raw is easy to cause parasitic diseases. At the same time, peanuts are often polluted by rodents, which is easy to spread natural epidemic diseases, especially epidemic hemorrhagic fever. Therefore, it is best to eat peanuts after cooking.
In addition, it is best not to eat peanuts for patients with hyperlipidemia, cholecystectomy, dyspepsia and bruises. Because peanuts digest slowly, the treatment of the above four diseases will have a negative effect.
The winged bean can not be eaten raw. Although winged bean has a good curative effect on coronary heart disease, arteriosclerosis, cerebrovascular sclerosis, habitual abortion, oral inflammation, urinary system inflammation, eye diseases and other diseases, winged bean contains toxic substances such as trypsin inhibitor and thrombin, which will lead to poisoning after being eaten raw.
Immature lentils should not be eaten. Autumn lentils contain two toxins, one is toxic protein (lectin) in lentils, and the other is hemolysin in pods, both of which are harmful to human body.
If lentils are not cooked, people are more prone to poisoning after eating them, resulting in nausea, vomiting, abdominal pain, dizziness, headache and other symptoms.
Do not eat uncooked green beans. When cooking green beans, if the heating is insufficient, it will cause poisoning. Because green beans, especially those after frosting, contain more toxic substances such as saponin or hemagglutinin, people may have symptoms of digestive system and nervous system such as nausea, vomiting, diarrhea, headache and dizziness after eating, and in severe cases, they may die.
Eating bean sprouts must be cooked thoroughly. Bean sprouts must be cooked thoroughly before eating. Otherwise, poisoning symptoms such as nausea, vomiting, dizziness, abdominal pain and diarrhea are prone to occur after eating. Because soybean sprouts contain toxic substances such as saponin and Bacillus cereus, the germs can only be destroyed and killed at a high temperature of 100℃.
Eating raw soybeans is harmful to health. Soybeans should not be eaten raw, because raw soybeans contain unhealthy antitrypsin, which will lead to diseases after eating. It is also not advisable to eat more fried soybeans.
Eating ginkgo raw is easy to cause coma. Ginkgo is delicious, but eating ginkgo raw can be toxic.
Because the testa of Ginkgo biloba contains toxic components such as ginkgolic acid, hydrogenated ginkgolic acid, hydrogenated ginkgolic acid, bilobanol, etc., it will damage people's central nervous system after being eaten raw. The initial symptoms are vomiting, abdominal pain and diarrhea, dizziness and headache, and then fever. In severe cases, people can see coma, foaming at the mouth, difficulty breathing, shortness of breath and purple lips, and may die of respiratory paralysis.
Eating bitter almonds is easy to be poisoned. Almonds can be divided into sweet almonds and bitter almonds, which have the effects of moistening the lungs, promoting digestion, dispersing stagnation of qi and resisting cancer. Bitter almond can cure cough, hemoptysis, fever and other symptoms of lung cancer. Sweet almond is widely used in cooking because it is nourishing and nourishing. Cold almond is common in the family, and its nutrition is very rich.
But bitter almonds cannot be eaten raw like sweet almonds. Because the bitter substance in bitter almond is caused by amygdalin, which is decomposed into highly toxic hydrocyanic acid under the action of digestive enzymes and acids in human body, which will make red blood cells lose their vitality, and even paralyze the respiratory center, leading to death.
However, amygdalin is water-soluble. If it is soaked in water and heated, it can be destroyed and volatilized, so it must be thoroughly heated before eating.
Eating eggs raw is harmful to health. Eating eggs raw is not only difficult to absorb nutrients, but also harmful to human body. This is because:
1.protein of raw eggs is not easily digested and absorbed.
2. The egg white of raw eggs contains an alkaline protein, avidin, which is harmful to the human body. This substance will hinder the absorption of biotin by the human body. Over time, the human body will suffer from biotin deficiency.
Eating raw eggs will increase the burden on the liver. If a large amount of undigested protein enters the digestive tract, it will produce more toxic substances. Some of these toxic substances are excreted with feces, and some need to be detoxified by the liver.
4. Eating raw eggs is prone to gastroenteritis. If eggs are contaminated by pathogens, when people eat raw eggs infected by pathogens, it is easy to cause chills and fever, nausea and vomiting, abdominal pain and diarrhea.
Raw shrimps are easy to be poisoned. Raw shrimps contain bacteria, which can easily cause food poisoning by Vibrio parahaemolyticus, ranging from abdominal pain and diarrhea to severe diarrhea and abdominal cramps, which directly affect the physiological activities of the body. What's more, it can make the body seriously deprived of oxygen, thus endangering life.
Fish meat is easy to cause disease when eaten raw. Fresh fish is tender, delicious and nutritious. People in many areas are used to eating raw fish. If hot porridge is poured on sashimi and eaten with seasonings, this porridge is called raw fish porridge; In other areas, fish is sliced and eaten with ginger, vinegar, wine, etc., which is also called "raw live fish fillets". In addition, people in Guangdong and Guangxi like to eat "raw fish".
These ways of eating will directly lead to people suffering from liver fluke disease. Because in fresh fish, especially freshwater fish, there are often parasites, such as common clonorchis sinensis and alien trematodes.
In the whole body of fish, the parasites in fish head and fish meat are the most. Indeed, in these areas where people like to eat raw fish, the probability of suffering from this disease is very high. Therefore, freshwater fish must not be eaten raw.
Scapharca subcrenata, which is susceptible to diseases, lives in offshore waters. Residents in coastal cities and rural areas of China and people working at sea, their feces and polluted domestic water are directly or indirectly discharged into the sea, which makes the sea water contain a certain amount of hepatitis A virus.
However, Scapharca subcrenata, which lives in seawater, must absorb oxygen and nutrients from the water in order to maintain its vitality. In this process, the virus in the seawater is concentrated in the gills of the clam, so that the hepatitis A virus in the clam is dozens or even thousands of times higher than that in the sea water.
With the serious seawater pollution, it is more dangerous to eat raw clam. Therefore, when eating Scapharca subcrenata, it should be heated and cooked before eating, so as to prevent the disease from entering the mouth and affecting human health.
Crabs are easy to get sick when eaten raw. There are parasitic paragonimiasis cysts on crabs, which can spread paragonimiasis. If eaten raw, the metacercariae of Paragonimus will be eaten into the stomach, and the metacercariae will develop into Paragonimus in the human body, and finally settle in the abdominal cavity, chest cavity, liver and kidney and invade the lungs, which can destroy tissues and cause cough, chest pain and low fever.
If the brain and spinal cord are invaded, headache, fever, vomiting, paralysis and blindness will occur. So eat crabs must be steamed or cooked, and eat them while they are hot.
Eating dead baby soft-shelled turtle will poison the baby soft-shelled turtle. There are a lot of pathogenic bacteria and toxic substances in its gastrointestinal tract. If it is slaughtered alive and burned now, it will be safe and sound if the gastrointestinal tract is discarded. Once dead, the bacteria in the gastrointestinal tract will multiply rapidly and spread to the whole body. At this point, people will get sick if they eat it. Although the young soft-shelled turtle can kill bacteria after cooking, it can't completely destroy the produced toxins, so it is still inedible.
Shellfish products should not be eaten raw. Shellfish aquatic products grown in shallows should not be eaten raw, because these shellfish are infected with germs to varying degrees. Oysters, mussels, clams, crabs and razor clams all carry a variety of germs, especially Escherichia coli and Vibrio parahaemolyticus contaminated with feces and urine. Among them, the detection rate of pathogenic bacteria is the highest in summer, which is the main reason for the continuous outbreak of gastroenteritis in coastal areas of China in recent years.
Soy sauce is easy to get sick when eaten raw. Soy sauce is a seasoning food made from bean cake, bran and soybean by inoculation and fermentation, and then sterilized at high temperature. Soy sauce is a nutritious condiment, which not only contains rich nutrients such as protein, carbohydrates, calcium, phosphorus and iron, but also contains various nutrients such as vitamin B 1, B2 and PP.
Soy sauce can not only improve and improve the sensory characteristics of dishes, but also enhance appetite and promote digestion. Soy sauce can be eaten without heating, but in the process of production, storage, transportation and sales, it is often polluted due to poor sanitary conditions, and even mixed with intestinal pathogens. After eating unheated soy sauce, people increase their chances of getting sick.
Soymilk is easy to be poisoned when drunk raw. Soymilk is a traditional food with rich nutrition and is deeply loved by the people. However, raw soybean milk, like lentils, may contain toxins, such as trypsin inhibitor and soapy bitter. If the raw soybean milk is not heated thoroughly and the toxin is not destroyed, it will cause poisoning after drinking.
The incubation period of soybean milk poisoning is very short, usually 30 ~ 60 minutes, mainly manifested as nausea, vomiting, abdominal distension, diarrhea, accompanied by abdominal pain, dizziness, fatigue and other symptoms, usually without fever. The symptoms of soybean milk poisoning are not serious, and the mild ones do not need treatment. The severe ones or children should go to the hospital for treatment in time.
Drinking raw water is easy to get sick. There are all kinds of bacteria, viruses and parasites that are harmful to human body. Drinking raw water can easily cause acute gastroenteritis, viral hepatitis, typhoid fever, dysentery and parasitic infection. Especially nowadays, rivers, reservoirs and wells are polluted by factory waste liquid, domestic wastewater and pesticide residues to varying degrees, and drinking raw water is more likely to cause diseases.
The tap water that people drink is chlorinated and sterilized. There are 13 kinds of harmful substances in water treated by chlorine, among which halogenated hydrocarbons and chloroform also have carcinogenic and teratogenic effects.
Drinking raw water increases the possibility of bladder cancer and rectal cancer by 21%~ 38%. When the water temperature reaches 100℃, the harmful substances in it will be greatly reduced with the evaporation of steam. If boiling continues for 3 minutes, it will be safer to drink.
Eating raw snake gall is easy to get sick. Snake gall is very unclean, which will increase the risk of illness after eating raw, and can cause acute gastroenteritis and some parasitic diseases.
Cold drinks of yellow rice wine are harmful to health. Yellow rice wine should not be cold drinks. Although the brewing process of yellow rice wine is strictly carried out according to hygienic standards, there are still a certain amount of methanol, aldehydes and ethers in yellow rice wine. If you drink yellow wine with cold drinks, these organic compounds that are harmful to human body will all enter human body, which is harmful to human health.