Sweet potato is not easy to digest when eaten raw, also known as sweet potato, sweet potato, sweet potato, red taro and so on. There are many names, including protein, carbohydrates, multivitamins and 9 kinds of amino acids, especially the essential amino acids.
Sweet potato is also rich in starch, but the cell membrane around starch is not destroyed by high temperature when eaten raw, so it is not easy to be digested and absorbed by human body, which makes people feel bloated and uncomfortable after eating.
Cold eating sweet potatoes can cause bloating. After eating sweet potatoes cold, it is easy to have symptoms such as stomach and abdomen discomfort and sour 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 blood, and eat lotus root can also cool blood and dissipate blood stasis. However, fresh lotus roots should not be eaten raw, because there are parasites (such as ginger worms) in raw lotus roots, which can easily cause ginger disease, mainly causing intestinal damage and ulcers, causing abdominal pain, diarrhea and indigestion.
Cassava can be poisoned if 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 can't be eaten raw.
Because cassava is a plant containing cyanosides, it can release hydrocyanic acid after being hydrolyzed by enzymes or acids. Hydrocyanic acid is protoplasm toxin. After being absorbed, cyanogen ion will combine with iron in cytochrome oxidase in human body, which will make respiratory enzyme inactive, and oxygen can not be used by cells and tissues, resulting in hypoxia and suffocation.
The main symptoms of poisoning are nausea, vomiting, burning sensation, chest tightness, dyspnea and irregular breathing.
Tomatoes should not be eaten raw. Tomatoes are commonly called tomatoes. The meat 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 vegetables commonly used by people, such as tomatoes, potatoes, 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, causing harm close to passive smoking.
Raw bamboo shoots are easy to be poisoned. Bamboo shoots usually contain a 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 tightness, nausea, vomiting, headache and so on. In severe cases, even death.
Taro has an itchy throat. Taro should not be eaten raw, because the mucus in taro will irritate the throat and make it itchy. Taro contains more starch, and eating too much at a time will lead to bloating.
Immature and indigestible peanuts are rich in vegetable oil, protein and vitamins. They are popular foods, but eating peanuts raw is harmful to human health. Because peanuts contain a lot of fat, digestion and absorption are slow, if eaten too much raw, it will cause indigestion.
In addition, peanuts grow in the soil and are often polluted by parasitic eggs, which can easily cause parasitic diseases if eaten raw. At the same time, peanuts are often polluted by rodents, which is easy to spread natural focus diseases, especially epidemic hemorrhagic fever. Therefore, peanuts are best cooked before eating.
In addition, patients with hyperlipidemia, cholecystectomy, indigestion and traumatic injury had better not eat peanuts. Because peanuts digest slowly, it will have a negative effect on the treatment of the above four diseases.
Winged beans should not be eaten raw. Although winged bean has a good 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 if eaten raw.
Immature lentils are not suitable for eating. Autumn lentils contain two toxins, one is the 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 likely to be poisoned after eating them, with symptoms such as nausea, vomiting, abdominal pain, dizziness and headache.
Don't eat undercooked green beans. If the green beans are not heated enough, it will cause poisoning. Because green beans, especially the frosted green beans, contain more toxic substances such as saponin or hemagglutinin, people may have digestive and nervous system symptoms such as nausea, vomiting, diarrhea, headache and dizziness after eating, and in severe cases may die.
Eat bean sprouts must be cooked. Bean sprouts must be cooked thoroughly before eating. Otherwise, poisoning symptoms such as nausea, vomiting, dizziness, abdominal pain and diarrhea are easy to appear after eating. Because soybean sprouts contain saponin, Bacillus cereus and other toxic substances, 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 gingko raw can easily lead to coma. Ginkgo biloba is delicious, but eating it raw may be poisonous.
Because the testa of Ginkgo biloba contains ginkgolic acid, hydrogenated ginkgolic acid, hydrogenated ginkgolic acid, ginkgolic acid and other toxic components. Eating raw will damage people's central nervous system. The initial symptoms are vomiting, abdominal pain and diarrhea, dizziness and headache, and then fever. Severe cases can be seen as coma, foaming at the mouth, dyspnea, shortness of breath, purple lips, and may die of respiratory paralysis.
Eating bitter almonds is easy to be poisoned. Almond can be divided into sweet almond and bitter almond, which has the effects of moistening lung, promoting digestion, resolving stagnation and resisting cancer. Bitter almond can cure cough, hemoptysis, fever and other symptoms of lung cancer. Sweet almonds are widely used in cooking because of their nourishing and nourishing functions. Cold almonds are very common in families and are very nutritious.
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 you soak it in water and heat it, it will be destroyed and volatilized, so be sure to heat it thoroughly 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 easy to digest and absorb.
2. The egg white of raw eggs contains an alkaline protein-avidin, which is harmful to human body. This substance will hinder the body's absorption of biotin. 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 liver detoxification.
Eating raw eggs is easy to get gastroenteritis. If eggs are contaminated by pathogens, when people eat raw eggs infected by pathogens, it is easy to cause chills, fever, nausea and vomiting, abdominal pain and diarrhea.
Raw shrimp is easy to be poisoned. Raw shrimp contains bacteria, which easily causes food poisoning by Vibrio parahaemolyticus, ranging from abdominal pain and diarrhea to severe diarrhea and abdominal cramps, which directly affects the physiological activities of the body. What's more, it will make the body seriously deprived of oxygen, which will endanger life.
Fish 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 seasoning, it is called sashimi porridge; In other areas, fish is sliced and eaten with ginger, vinegar and wine. , also known as "life fish fillets". In addition, Guangdong and Guangxi people like to eat "raw fish".
These diets will directly lead to liver fluke disease. Because in fresh fish, especially freshwater fish, there are often parasites, such as common Clonorchis sinensis and exotic trematodes.
In the whole body of fish, the parasites in the head and fish are the most. Indeed, in these areas where people like to eat raw fish, the probability of suffering from this disease is very high. So freshwater fish must not be eaten raw.
Scapharca subcrenata lives in offshore waters and is susceptible to diseases. Residents in coastal cities and rural areas in China and people working at sea, their feces and polluted domestic water are directly or indirectly discharged into the sea, so that the sea water contains a certain amount of hepatitis A virus.
However, Scapharca subcrenata, which lives in seawater, must absorb oxygen and nutrients from the water to maintain its vitality. In this process, the viruses in seawater are concentrated in the gills of Meretrix meretrix, which makes the hepatitis A virus in Meretrix meretrix dozens or even thousands of times higher than that in seawater.
With the serious pollution of seawater, it is more dangerous to eat clam raw. Therefore, when eating Scapharca subcrenata, it should be heated and cooked before eating, so as to avoid the disease from the mouth and affect human health.
Crabs are easy to get sick when eaten raw. Crabs have parasitic paragonimiasis cysts that can spread paragonimiasis. If eaten raw, the metacercariae of Paragonimus will be eaten in 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, there will be headache, fever, vomiting, paralysis and blindness. So eat crabs must be steamed or boiled, and eat them while they are hot.
Eating a dead turtle will poison the turtle. There are a lot of pathogenic bacteria and toxic substances in its gastrointestinal tract. If we kill it alive and burn it now, it will be safe to discard the gastrointestinal tract. Once dead, the bacteria in the gastrointestinal tract will multiply rapidly and spread throughout the body. At this point, people will get sick if they eat it. Although the young soft-shelled turtle can be sterilized after cooking, it cannot completely destroy the toxin produced, 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 various germs, especially Escherichia coli and Vibrio parahaemolyticus contaminated by 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.
Eating soy sauce raw is easy to get sick. 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 is rich in protein, carbohydrates, calcium, phosphorus, iron and other nutrients, as well as vitamins B 1, B2, PP and other nutrients.
Soy sauce can not only improve and enhance the sensory characteristics of dishes, but also stimulate appetite and digestion. Soy sauce can be eaten without heating, but in the process of production, storage, transportation and sales, it is often contaminated due to poor sanitary conditions, and even mixed with intestinal pathogens. After eating unheated soy sauce, people's chances of getting sick increase.
Soymilk is easy to be poisoned when drunk raw. Soybean milk is a traditional food with rich nutrition, which is deeply loved by people. However, raw soybean milk, like lentils, may contain toxins, such as trypsin inhibitors and bitter taste of soap. If the raw soybean milk is not heated thoroughly, the toxin will not be destroyed, and it will cause poisoning after drinking.
The incubation period of soybean milk poisoning is very short, generally 30 ~ 60 minutes, mainly manifested as nausea, vomiting, abdominal distension, diarrhea, accompanied by abdominal pain, dizziness, fatigue and other symptoms, generally no fever. The symptoms of soybean milk poisoning are not serious, and they are light and do not need treatment. Severe cases 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 harmful to human body. Drinking raw water can easily cause acute gastroenteritis, viral hepatitis, typhoid fever, dysentery and parasitic infection. In particular, 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 disinfected. 13 A variety of harmful substances can be separated from chlorine-treated water, 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 2 1% ~ 38%. When the water temperature reaches 100℃, the harmful substances in it will be greatly reduced with the evaporation of steam. If you keep boiling for 3 minutes, it will be safer to drink.
Eating raw snake gall is easy to get sick. Snake gall is very unclean. Eating it raw will increase the risk of illness, which can cause acute gastroenteritis and some parasitic diseases.
Yellow wine and cold drinks are harmful to health. Yellow rice wine should not be a cold drink. Although the brewing process of yellow rice wine is strictly in accordance with hygienic standards, there are still some methanol, aldehydes and ethers in yellow rice wine. If you drink yellow rice wine with cold drinks, all these organic compounds harmful to human body will enter human body, which is harmful to human health.