Hairtail is the first kind of marine fish. Hairtail has higher fat content than common fish, and most of them are unsaturated fatty acids, which can reduce cholesterol, enhance cell vitality on the skin surface and make the skin tender and smooth. The scales and silver oil layers of hairtail also contain 6- thioguanine, which is beneficial to the adjuvant treatment of leukemia, gastric cancer and lymphoma. Hairtail is also rich in magnesium, which has a good protective effect on cardiovascular system and can prevent hypertension and myocardial infarction. At the same time, hairtail has less fat thorns and delicious taste, which is very suitable for children and people who are afraid of fishbone. Crucian carp in river fish is also a good food supplement in spring. Crucian carp is characterized by comprehensive nutrition, high sugar content and low fat, and is rich in protein, vitamins, trace elements and amino acids necessary for human body, so it is tender and not greasy. Eating crucian carp regularly can not only strengthen the body, but also help to lower blood pressure and blood lipids and make people live longer. Maternal consumption of crucian carp can not only increase nutrition, but also effectively promote lactation. The nutritional components of marine fish and freshwater fish are basically the same. Generally speaking, the nutritional value of deep-sea fish is relatively high, and there are many minerals such as unsaturated fatty acids, iodine, selenium and manganese, vitamin A and vitamin D. Although the nutritional value of fish is very high, different cooking methods have great influence on nutrient absorption. It is best to steam, stew or stew fresh fish, because it can retain the original color and taste of fish, and the meat is delicious, and the original nutrients are not easy to lose. It is best not to fry, fry or bake, otherwise it will not only destroy nutrition, but also increase a lot of harmful substances. Healthy Eating Network: Fish living in nature in foodwang.com will be polluted by bacteria or water, so when cooking fish, it must be thoroughly cooked and never eaten raw. Adults are generally advised to eat fish 23 times a week, 23 taels each time, at least 1 time.