2 Two crabs’ cholesterol equals five two fats？ Eat crabs healthily and listen to what the doctor says.
Zhejiang Online-Health Network September 28th (Reporter Chai Yanhong correspondent Shen Xiaochi)Autumn wind comes, crabs are fat, and it’s time to eat crabs again. As the saying goes, "the west wind tickles the crab’s feet", which means that when the crab is yellow and full of cream every autumn, it is the best time to taste it.
The National Day holiday is coming. In addition to traveling, tasting food is also a major event. Whether watching the beautiful scenery in a different place, or reuniting with relatives at home and eating a fat crab contentedly, it is the most pleasant enjoyment in the holiday.
Although crabs are delicious and nutritious, the title of "high cholesterol" has always made people feel worried when eating. There is a saying on the Internet that eating 2 ounces of crab’s cholesterol is equivalent to 5 ounces of fat.
Is that really the case?
Let’s listen to some anecdotal rumors about eating crabs.
Myth 1: Eating 2 crabs equals 5 fat.
Anecdotally, eating 2 Liang crabs has the same cholesterol as eating 5 Liang fat.
Expert Interpretation: China Nutrition Society suggests that the average adult should not consume more than 300mg of cholesterol every day, and those with hyperlipidemia should be controlled below 200mg. However, according to China’s food composition table, the average content of cholesterol in every 100 grams of river crabs is 267 mg, which is indeed equivalent to the amount of cholesterol in five ounces of fat. But in fact, this calculation is not accurate. Because other foods you eat every day also contain a certain amount of cholesterol, it is best to control the amount of crabs. It is recommended to eat at most one or two at a time and at most three times a week. Eat less meat, viscera and eggs while eating crabs, and eat more soy products, vegetables and fruits to promote cholesterol metabolism.
Myth 2: Crabs and vitamin C will be poisoned when eaten together.
It is rumored that tomatoes and crabs can be highly toxic when eaten together. Because crab is a crustacean, the substance it contains will become what people call arsenic under the action of vitamin C, and it will be poisoned after eating.
Expert interpretation: This statement is very exaggerated. Like shrimps and crabs, they contain a certain amount of arsenic, which will be converted into arsenic trioxide under the action of vitamin C, which is really what people call arsenic. However, if you want to turn it into arsenic, you must take a lot of both together. Nutrition experts have done similar experiments. Take 300 mg of vitamin C after eating a big crab for dinner, and there is no problem even after eating for three days. Moreover, in pharmacy, a small amount of arsenic is beneficial to the human body and can also be used for the treatment of leukemia in clinic. But when eating crabs, it is best to avoid tea and yellow persimmon, because both of them contain tannins, which are easy to combine with protein in crabs to form stones. At the same time, cold fruits such as cantaloupes, watermelons and pears are also taboo, because crabs themselves are cool and prone to gastrointestinal discomfort when eaten together.
Myth 3: pregnant women and children can’t eat crabs.
People who have children and old people at home will be very worried: "Is it true that old people and children can’t eat crabs, otherwise it will be easy to have diarrhea?"
Expert Interpretation: According to Chinese medicine, river crabs have the effects of promoting blood circulation and promoting bone development, especially crab claws, which are often used in bone-setting drugs. The reason why the elderly are not recommended to eat crabs is because the crabs themselves are cold, and the spleen and stomach of the elderly are weak, which is prone to bloating and diarrhea after eating. However, children under 2 years old are not well developed in small intestine function, and can’t digest and absorb protein in crabs well. Once the body is excessively "defensive", there will be specific protein allergy, so children under 2 years old should be cautious when eating crabs.
Although the rumors are false and true, you can’t believe them all, but the doctors of Xinhua Hospital in Zhejiang Province reminded that different people really should eat crabs according to their actual situation, and some people are not even suitable for eating crabs.
1. Eat crabs with some fresh Jiang Mo and vinegar.
Crabs are salty and cold, while ginger is warm, which has the effect of warming the middle warmer, dispelling cold and detoxifying; In addition to seasoning, vinegar can also sterilize and destroy histamine in crabs. Moreover, ginger and vinegar are condiments. When eating crabs, dip them in Jiang Mo vinegar juice to make them more delicious.
After the death of crab, its rigidity period and autolysis period are greatly shortened. Bacteria in crabs will multiply rapidly and spread to crab meat. Under weak acid conditions, bacteria will decompose amino acids in crabs and produce a large number of histidine and histidine-like substances. Group A ammonia can cause allergic food poisoning, while group A ammonia can cause vomiting, abdominal pain and diarrhea.
3. Eat crabs in moderation and pay attention to collocation.
Don’t drink tea when eating crabs and within 1 hour after eating crabs. Because boiling water will dilute gastric acid, tea will solidify some components of crab, which is not conducive to digestion and absorption, and may also cause abdominal pain and diarrhea.
4. The following people should not eat crabs.
Patients with colds, fever, stomachache and diarrhea, people with digestive tract inflammation or ulcerative cholecystitis, cholelithiasis and active hepatitis are not suitable for eating crabs.
People suffering from coronary heart disease, hypertension, arteriosclerosis and hyperlipidemia should eat less or not, and crab meat should not be eaten more.
People with allergies should not eat crabs.
5. Eating crabs should not be chewed indiscriminately.
When eating crabs, you should pay attention to four things to remove after opening the lid: remove the crab stomach, that is, the triangular bone packet in the crab lid, eat the crab lid first, scoop out the middle crab stomach with a small spoon, and gently suck the crab yellow wrapped outside. Be careful, don’t suck through the stomach of the crab with a triangular cone in the middle, and discard it if there is dirty sand in it; After eating the crab cover, it’s the crab’s turn. First, cut off the extra crab feet and mouth with scissors. Pick out a hexagonal piece in the middle of the crab with a spoon handle, which is the crab heart part that should be discarded. There is also a crab intestine, that is, a black line from the crab stomach to the crab navel; Crab gills, that is, two rows of soft things like eyebrows growing on crab abdomen, should be removed.
These four parts of the crab can’t be eaten
"triangle bag" with stomach hidden in crab roe
When you open the crab shell, you can see that there are some crab roe on the shell, and the crab stomach is hidden in the crab roe of the shell. Open the crab roe with a spoon, gently suck the crab roe wrapped on it, and the exposed triangle bag is the crab stomach. Crabs feed on aquatic organisms, aquatic plants and decaying animals, so the crab’s stomach is dirty and it is not recommended to eat.
Two rows of "small fans" on the cheeks
The crab gills are the most obvious. After opening the crab shell, two rows of gray fan-shaped soft tissues are on the crab body. Crab gills are the respiratory system of crabs, and they are also inedible.
"Hexagonal plate" under the pericardium
Chinese medicine often says that crabs are extremely cold, and the hearts of crabs are the coldest. Remember to take them off when eating crabs. The crab heart is a white hexagon, which is generally located under a black film in the center of the crab. The white material connecting the two crab gills is the crab heart.
A black line from the intestines and stomach to the umbilicus.
The crab intestine is located in the openable mask on the lower abdomen of the crab. Open this mask and you can see a black line connecting the crab body at its top. It is the crab intestine. Crab intestines also belong to the digestive system of crabs, so it is recommended to take them out.