A contraindication to eat raw river fish. Liver fluke eggs in the river pond snail lion body development into tailed larvae, and parasites in the fish body, if you eat raw river fish, liver fluke will enter the human body to develop into worms, can make the human body to produce cholangitis, and even develop into cirrhosis of the liver. According to a hospital on the bile duct patients survey statistics: which love to eat raw fish, accounting for about 60%, cirrhosis patients, love to eat raw fish accounted for 50%. Second contraindication to eat raw crab and lobster. Raw crab with Schistosoma cysticercus and Vibrio parahaemolyticus, lobster is the intermediate host of Schistosoma, raw crab and lobster, Schistosoma enter the human body, will cause lung damage, severe intestinal inflammation or intestinal edema and congestion. According to statistics, due to eat raw crabs and lobsters, outpatients, causing lung damage to more than 4,000, causing intestinal inflammation of more than 3,000 patients, causing intestinal edema and congestion of more than 2,000. Third, avoid eating raw water chestnuts. Often eat raw water chestnut, which the ginger bug will enter the body and attached to the intestinal mucosa, can cause intestinal ulcers, diarrhea or facial swelling. According to a hospital report in March last year, outpatients, eat water chestnuts raw and was violated by the ginger bug to intestinal ulcers up to more than 400 people, suffering from diarrhea 158 people, facial edema 15 people. Four avoid eating raw eggs. Egg white contains anti-biotic protein in the intestinal tract and the combination of biotin, will hinder the body's absorption of biotin. Raw eggs also often contain salmonella, will make people vomit, diarrhea. Five taboo raw fresh cauliflower. Fresh cauliflower contains colchicine, into the human body to form oxidized dicolchicine, extremely toxic, eating 3-20 mg can be fatal. Six avoid eating raw fresh fungus. Fresh fungus containing leaf forest photoreceptor substances, eat raw fresh fungus, can cause solar dermatitis, severe skin itching, edema and pain. Seven taboo raw honey. Bees in the brewing of honey, often collect some toxic pollen, these toxic pollen brewed into the honey, people eat raw honey is prone to poisoning. In addition, honey in the process of harvesting, transportation, storage, and easily contaminated by bacteria. Therefore, raw honey is not edible. Eight taboo raw soy milk. Soybean milk is delicious, its nutritional value is not lower than milk. But drinking unboiled soybean milk, can cause systemic poisoning. Because raw soybean milk contains some harmful ingredients - antitrypsin, phenolic compounds and saponin. Antitrypsin affects the digestion and absorption of protein; phenolic compounds can make soybean milk bitter and fishy; saponin stimulate the digestive tract, causing vomiting, nausea, diarrhea, thus destroying red blood cells, producing toxins, so as to cause systemic poisoning. Nine avoid eating raw beans. Beans including lentils, kidney beans, beans, beans, beans, beans and so on. Eating bean curd is easy to be poisoned, because bean curd contains a poisonous protein "agglutinin", this kind of material in the mature or older bean curd in the most. Bean curd should be boiled or heated over high heat for more than 10 minutes so that the "lectin" will be removed. When you eat fried string beans or stuffed with string beans, you should heat them well, and eat cold string beans should also be boiled for 10 minutes. Avoid eating raw sugar. White sugar is often parasitic mites, raw sugar is easy to get mite disease. Mites are a kind of hairy small insects, invisible to the naked eye, mites in the sugar reproduce very quickly. If the mite enters the gastrointestinal tract, it will cause abdominal pain, diarrhea, and the formation of ulcers. If it enters the lungs, it can cause hemoptysis and asthma. If it enters the urinary tract, it can cause inflammation of the urinary tract. Therefore, it is best not to eat raw sugar, should be heated before consumption (generally heated to about 70 ℃ to keep 3 minutes on it).