The content of protein in crayfish is very high, and the meat is soft and easy to digest. Shrimp meat is also rich in magnesium, zinc, iodine, selenium, etc. Magnesium plays an important role in regulating heart activity and protecting the cardiovascular system. It can reduce the cholesterol content in blood, prevent arteriosclerosis, and dilate coronary arteries, which is conducive to preventing hypertension and myocardial infarction. Crayfish contains astaxanthin, which is a strong antioxidant. Astaxanthin helps to eliminate "jet lag" caused by jet lag. In addition, crayfish can also be used as medicine, which can eliminate phlegm and relieve cough, and promote the wound healing after operation.
Crayfish is made into a variety of dishes because of its larger size, more meat and delicious meat than other freshwater shrimps, which has been widely welcomed.
What parts of crayfish can't be eaten?
1. Shrimp line
Generally speaking, the digestive system of crayfish, such as intestines, tends to accumulate heavy metals, so the shrimp line should be pulled out before cooking. Shrimp line on the back of shrimp is the waste that has not been excreted by shrimp. If it tastes muddy in the mouth, it will affect the appetite, so it should be removed.
2. Shrimp head
Usually, in the process of making shrimp, the whole shrimp will be cooked together. Therefore, many diners will eat the head of shrimp in the process of eating shrimp, but do you know? It is best not to eat the head of shrimp, because some harmful metal elements will be deposited on the head during the growth of shrimp. If people eat the head of shrimp, these harmful metal elements will have a certain impact on people's health.
Precautions for eating crayfish
1. Wild crayfish are not edible.
Usually, when people eat crayfish, it is best to choose artificially cultured crayfish, because the number of parasites in artificially cultured crayfish is relatively small, and there are a large number of parasites in those wild crayfish, which is not suitable for human consumption, otherwise a large number of parasites will appear in people's bodies, which will harm their health.
2. Crayfish should not be eaten in excess.
Although crayfish is good, you must pay attention to the amount when eating, and you can't eat too much. Because crayfish is a kind of hot food, people will aggravate the body's heat toxicity after excessive consumption, and there will be many symptoms of getting angry. Another point is that the hygienic conditions of crayfish are not safe, and it will also be harmful to health after excessive consumption.