"Crabs" are delicious and healthy.

As the saying goes: autumn wind, crab feet itchy; Every autumn, in the people's favorite seasonal food list, the yellow fat-filled crabs are sure to occupy a seat. National Day is about to come, I believe that many people's table food can not help but it. Crabs are delicious, how can you eat well? Before enjoying the delicious, it is best to understand the crab-related diet common sense, so as to meet the desire of the mouth, but also take into account health.1
crab beneficial fat content is high
speaking of Our country's crab species, there are probably hundreds of species. According to the origin, it can be divided into river crab, river crab, lake crab, sea crab four kinds. What is a crab? The crabs, commonly known as river crabs, wool crabs and water crabs, usually mature from September to October. But not all river crabs are called big gate crabs, varieties need to be Chinese velvet crabs, the weight of three or two or more. It is said that the name "Crab" has a head. At that time, Suzhou, Kunshan area of crab catchers, in the harbor set up a gate, the gate with bamboo pieces made up, at night hanging lights, crabs see the light will climb the bamboo gate, was caught one by one, so called the big gate crab.
people likened the crab to the taste of the excellent, Ming Dynasty writer Zhang Wei once said: eat the crab without vinegar salt and all taste. So, what is the nutritional value of crabs?
can eat crab meat, crab yellow or crab paste, although they are the same crab, nutritional value is different. For example, 17.5 grams of protein, 1.2 grams of fat and 65 milligrams of cholesterol are found in every 100 grams of river crab meat, and 13.8 grams of protein, 2.3 grams of fat and 125 milligrams of cholesterol per 100 grams of sea crab meat. River crab meat contains a little less fat and cholesterol than sea crab meat. In addition, 100 grams of river crab meat contains 6.09 mg of vitamin E, 126 mg of calcium, 2.9 mg of iron, 3.68 mg of zinc and 56.72 gram of selenium, almost free of vitamin A; 100 grams of sea crab meat contains 30 micrograms of vitamin A, 2.99 mg of vitamin E, 208 mg of calcium, 1.6 mg of iron, 3.32 mg of zinc and 82.65 mg of selenium.
, whether river crabs or sea crabs, they are rich in vitamins and minerals, but also high-protein food.
most popular parts of crab yellow and crab paste, its nutritional content is similar, mainly contains fat and cholesterol, fat content is higher, can reach 15% and above. This is one of the reasons why crab paste and crab yellow taste good. In addition, cholesterol levels can be as high as 400 milligrams per 100 grams of crab yellow, and the crab paste is similar. However, do not worry too much, one is a year to eat crab time is limited, but the amount of consumption is good, and the other is that many of these fats are good for human health essential fatty acids, such as flaxic acid, flaxic acid and peanut tyrenic acid.
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."Six categories of people" eat less is wonderful
some people love to eat crabs, but the thought of crabs is "cold" food, on the heart drumming. Cold, hot, warm, cool, does not mean the human body's feeling of external temperature? Why do food have these differences? This is actually a chinese medicine, food on the cold, hot, warm, cool, equal attributes of the classification, according to the color of food, taste, growth environment, growing season and the geographical environment of growth, but also refer to the body reaction after eating. Simply put, after eating food, the body has a warm, hot feeling, the food is warm, hot; If the food is flat, it means that the food is peaceful and can be eaten daily.
, Chinese medicine believes that eating crabs should be determined according to their own physical condition. So in real life, is there anyone who is not suitable for crabs? The following six groups of people need to be careful to eat crabs, to eat less or avoid food as a good idea.
1, weak physique, poor spleen and stomach function, stomach acid secretion is insufficient people, should not eat crab crab carrying some pathogenic bacteria, because everyone's digestion ability, immune strength are different, there are differences in resistance to pathogenic bacteria and viruses. People with weak physique, poor function of spleen and stomach, and insufficient secretion of stomach acid are easily attacked by pathogenic bacteria and show symptoms of discomfort. In addition, some people feel gastrointestinal discomfort after eating crabs, which is caused by difficulty digesting the protein in them.
2, allergic physique, easy to grow eczema people, should not eat crab for our residents, shrimp crab and other aquatic products are the most likely to cause allergies to food types, which lead to allergies related proteins have been a lot of research. Therefore, shrimp crab and other seafood allergy people do not eat crab, otherwise it is easy to cause gastrointestinal smooth muscle spasms, angioedema, followed by nausea, vomiting, abdominal pain, diarrhea and other symptoms. In severe cases, urticaria or asthma may also occur, or even anaphynaphynalyctic shock. In addition, people with dermatitis, eczema, rickchis and other skin diseases should also eat crabs carefully, so as not to induce disease or aggravate the disease.
3, cold, fever people, should not eat crabs because their gastrointestinal function is relatively weak at this time, can not digest and absorb high protein in crabs, prone to gastrointestinal discomfort.
4, people with hyperlipidemia, hypercholesterolemia and bile dud disease should not eat crab, especially crab yellow, crab cream gallbladderitis, gallstone formation and the body cholesterol too much and metabolic disorders have a certain relationship, crab cholesterol is high, cholesterol per 100 grams of crab yellow 460 mg, eating crab easy to make the disease relapse or re-weight.
5, gout patients and patients with high uric acidemia should not eat crab every 100 grams of crab meat containing 82 mg of radon, gout patients in the acute onset period should not eat crab, especially not to eat crab meat or crab yellow made of soup, soup;
6, the elderly and infants should not eat crabs because of the elderly digestive system organs function decline, children's digestive organs development is not perfect, their digestive absorption capacity is no more than young adults, so eating crabs should be mainly taste. It is important to note that infants should not eat crabs 10 months ago, as high protein can increase the burden on the liver and kidneys.
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five taboos to eat crabs to remember
after the people who do not eat crabs, but also to say that eat crabs five taboos. Otherwise, people who eat crabs may also have a problem eating them.
A taboo to eat raw crab drunk crab body table, gills and gastrointestinal tract is full of all kinds of bacteria and parasites, crab must be steamed or cooked through, the general water after heating for 15 minutes to play a bactericidal effect. The traditional method of eating crab is steamed with ginger vinegar juice, which is scientific, both to ensure that the bacteria and parasites in the crab body are killed, but also to ensure that the original taste of the crab is not destroyed.
Some people prefer to eat raw crabs, drunk crabs, feel that it tastes more delicious, but crabs attached to a variety of viruses, bacteria and parasites will also take advantage of the opportunity to enter the body, may cause food poisoning, diarrhea, abdominal pain and vomiting and other symptoms. Drunk crab although soaked in yellow wine, white wine, but the crab itself is raw, alcohol can not be completely sterilized and disinfected. If drunk crabs contain pulmonary sacs into the human body and develop into adult insect spawning, serious can also reach the human brain, skin, liver and other organs parasites. Therefore, these two ways of eating should be abandoned.
Second, after the death of eating dead crabs, the bacteria in their bodies will quickly multiply and spread to crab meat, breaking down the amino acids in crab meat, producing a large number of harmful substances, so eating dead crabs may induce vomiting, abdominal pain, diarrhea. Besides, dying crabs are better not to buy them. In addition, crab meat is rich in histamine, when the crab dies, some bacteria containing histamine dextaminase can make the crab meat in the histamine dehydrogenic base to form a large number of histamines. Histamine is a allergenic substance that allows small veins and capillaries to dilate, promotes increased secretion of mucous membranes and glands, leads to allergic symptoms, and may also cause circulatory failure.
three taboo to eat long-standing cooked crab storage of cooked crabs are very easy to be contaminated by bacteria, so crabs should be steamed to eat. In case you can't finish eating, the remaining crabs must be kept in the refrigerator and eaten at the next meal, when you eat back to the pot and then boiled hot or steamed through. Overnight crab is recommended not to eat, back to the pot heating can kill pathogenic microorganisms, but can not destroy toxins, there is still a danger.
four taboo to eat crab cheeks, crab stomach, crab intestines, crab heart crab gills, crab stomach, crab intestines, crab heart these four parts do not eat. When opening the crab shell, the gray-white strip on both sides, the soft part is the crab's bar, it is the crab's respiratory organs, direct contact with the outside world, easy to accumulate dirt and heavy metals. Located in the first half of the crab shell, under the eyes of the triangle is the crab stomach, a black strip is the crab intestine, these two parts are the crab's digestive organs, which contain food and metabolites, there is also the possibility of accumulating dirt. Crab heart, commonly known as the "hexagonal plate", located in the middle of crab yellow or crab paste, is hexagonal, is considered to be the "coldest" part of the crab. Here is an important part of the circulatory system, leaving more blood, its blood composition and the human body has a large difference, easy to cause immune response.
five taboo to eat too much as previously said, crab contains protein and crab yellow contains relatively high cholesterol, an excessive consumption is not conducive to human digestion and absorption. According to the Recommendations of the Chinese Nutrition Society's "Chinese Residents' Dietary Pagoda", the appropriate intake of aquatic products is 40-75 grams (the eatable part), equivalent to 100-188 grams of shelled crabs, and preferably no more than 3 times a week. 188 grams of shelled crabs, roughly equivalent to a four-and-a-half-weight large crab.
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the crab can eat with the fruit?
many people have a question, crab and fruit can eat together? Because there is a saying that the five-price arsenic contained in seafood may react with vitamin C and become toxic.
, seafood sold through regular channels needs to be tested by relevant departments, and arsenic content should not exceed 0.5 milligrams per kilogram as stipulated by national standards. According to this calculation, a person needs to eat 150 kilograms of seafood and a dozen pounds of fruit at once, in order to be able to have a toxic reaction, which is simply not possible. Moreover, a study conducted by researchers in a simulated stomach fluid found that vitamin C could not reduce five-price arsenic to triethic arsenic (arsenic cream) alone. Therefore, when eating crab, shrimp and other seafood can not eat fruit, can not eat vitamin C tablets and so on, and does not hold true.
pregnant women eat crabs?
Believe that many women in preparation for pregnancy or pregnancy, will be reminded by others "can not eat crabs", the reason is usually crab cold, there is the effect of live blood, eating will make the gas blood down easy for pregnant women to slip, abortion. People who hold this view are not in the minority, so is this true? The answer is no, there is no statistic that abortion is related to eating crabs. Pregnant women eat crab after abortion, often because of the wrong crab, such as pregnant women themselves allergic to seafood, crab itself is not fresh or have bacterial parasites. These pregnant women developed symptoms such as allergic reactions or acute gastroenteritis after eating crabs and ultimately failed to save their fetuses.
normal pregnant women can eat crabs, but if eating crabs when not pregnant is prone to gastrointestinal symptoms, it is recommended not to eat during pregnancy. In addition, clearly for the physical weakness, digestive function of pregnant women, as little as possible to eat or do not eat crabs. extended reading
how to choose crabs
pick fresh fat crabs is the technical work of the door. As the saying goes, "September full umbilical cord October tip", refers to the lunar month of September to eat female crabs, its crab umbilical cord is round, at this time the female crab yellow full of meat thick;
choose the female and male crabs, you can follow these guidelines by selecting healthy crabs.
first is pinching: pinching the back of the crab with your thumb and fore finger and gently shaking it, the crab claws drooping and shaking with the dead crab, the crab claws firm and swinging on their own are live crabs.
Followed by teasing: you can tease the crab's eyes with your hands, which, if it reacts immediately, indicates vitality, or turn the crab around, with its belly facing the sky, if it can quickly flip the body to show that the crab is energetic, and the reverse indicates poor vitality.
Three is to see: look at the shell back is black-green, with luster, for the meat thick and strong; look at the tail end, belly button protruding out, and crab umbilical cord on both sides will be red (commonly known as "red print"), generally full of cream fat;
fourth is to try: if conditions permit, put the crab into a basin of water, will spit white foam is the live crab.
(Bi Yanxia, Nutrition Physician, Friendship Hospital, Beijing)