Protein of marine fish is also very rich, so eating marine fish can make the skin more elastic. Marine fish contains more lecithin, which can not only delay aging, but also promote intellectual development, especially children, so they should eat more marine fish. Eating sea fish for the elderly can also control the degeneration of brain cells.
Extended data
system of selection
look
Fish eyes sparkle. If the live fish can be preserved with crushed ice immediately after death, the lens of the fish eye will glow. Therefore, the eyes of fresh marine fish are clear and transparent, and the eyeballs are complete and full, slightly protruding outward. On the contrary, if the fish's eyes are not protruding, the cornea is shriveled and turbid, and the blood in the eyes is red, it means that the fish is not fresh.
touch control
Fish is harder and fresher. After the death of animals, muscles will enter the process of rigidity, softening and corruption in turn. Therefore, the stiff marine fish is relatively fresh. If you pinch it with your fingers, the sunken place will recover immediately. If the fish is soft and cannot recover immediately after being pressed, it is best not to buy it. In addition, you can touch the skin of fish. Fresh marine fish have less mucus on the surface and smooth scales. Stale fish skin has more mucus and loose scales.
smell
Fish gills smell of sea water. Judging whether the fish is fresh by smell, if possible, it is recommended to open your cheeks and smell it. Fish gills should have the salty taste of marine fish, without peculiar smell. At the same time, the gills of fresh fish are bright red, and the gills are partly bright; However, the stale gill filaments are damaged, the color is grayish red or grayish purple, and the smell is not good.
References:
Baidu encyclopedia-sea fish
People's Network-Women who eat more fish are not depressed. They eat deep-sea fish twice a week.