It is impossible to eat only one kind of food in daily meals. There must always be all kinds of meat, eggs and vegetables to enrich our table. However, when we eat seemingly nutritious food, due to improper collocation of some foods, it will cause physical discomfort, and even lead to poisoning and life-threatening. 20 kinds of foods that can't be mixed. Eating seafood with beer can easily induce gout. Seafood is a food containing purine and monophosphate, and beer is rich in vitamin B 1, an important catalyst for decomposing these two components. If you drink beer while eating seafood, it will promote the combination of harmful substances in the body and increase the uric acid content in human blood, thus forming urinary calculi that are difficult to discharge. If there is something wrong with your metabolism, drinking beer while eating seafood will easily lead to a sharp increase in blood uric acid level, which will lead to gout, resulting in gouty nephropathy and gouty arthritis. Eating eggs together with soybean milk affects protein's absorption. Raw soybean milk contains trypsin inhibitor, which can inhibit the activity of human protease and affect the digestion and absorption of protein in human body. Egg white of eggs contains mucin, which can combine with trypsin in soybean milk, so that the decomposition of protein is hindered, thus reducing the absorption rate of protein in human body. Mixing milk and chocolate is easy to cause diarrhea. Milk is rich in protein and calcium, while chocolate contains oxalic acid. If they are mixed together, calcium in milk will combine with oxalic acid in chocolate to form a kind of water-insoluble calcium oxalate, which will not be absorbed after eating, but also cause symptoms such as diarrhea and dry hair, which will affect growth and development. Fruit and seafood are not easy to digest. If you eat grapes, hawthorn, pomegranate, persimmon and other fruits at the same time, you will have vomiting, abdominal distension, abdominal pain and diarrhea. Ham and lactic acid drinks are easy to cause cancer. People who often eat sandwiches with yogurt for breakfast should be careful. Ham and bacon in sandwiches are easy to cause cancer when eaten with lactic acid drinks (including organic acids). In order to preserve sausage, ham, bacon, bacon and other processed meat products, food manufacturers will add nitrate to prevent food spoilage and the growth of Botox. When nitrate meets with organic acids (lactic acid, citric acid, tartaric acid, malic acid, etc.), it will be transformed into a carcinogen-nitrosamine. Potatoes should not burn beef. Potatoes should burn beef. Because the concentration of gastric acid required for digestion of these two foods is different, it will prolong the retention time of food in the stomach, and lengthen the digestion and absorption time of gastrointestinal tract, resulting in gastrointestinal discomfort. Spinach and tofu are easy to suffer from lithiasis. Tofu contains magnesium chloride and calcium sulfate, while spinach contains oxalic acid. When the two foods meet together, they can produce magnesium oxalate and calcium oxalate. These two kinds of white sediments can not be absorbed by human body, which not only affects the absorption of calcium by human body, but also is prone to lithiasis. The doctor suggested that if the two can be eaten separately, the nutrient absorption will be better. Eating carrots and oranges together can easily induce goiter. Radishes will produce a substance called thiocyanic acid. If a large number of oranges, apples, grapes and other fruits are eaten at the same time, flavonoids in fruits will be transformed into thiocyanic acid that inhibits thyroid function after bacterial decomposition in the intestine, which will induce goiter. Other unsuitable food, pork+water chestnut, causes stomach pain; Liquor+persimmon, causing poisoning; Beef+chestnuts, causing vomiting; Onion+honey hurts the eyes; Mutton+watermelon, which hurts the vitality; Radish+fungus will get dermatitis; Banana+taro will bloat; Peanut+cucumber will hurt the body; Turtle+amaranth will be poisoned.