There is a black film on the inner wall of fish belly, which is also called fish belly black film. The black membrane of fish abdomen has a protective effect on fish abdomen, which can prevent harmful substances in fish viscera from infiltrating into muscles. However, the black film of fish belly is also a gathering place of toxic substances. So before eating, be sure to take it out and use it again, otherwise it will be easily poisoned.

In the process of slaughter, fish gall and other internal organs are removed from fish bought in the general market. However, if you kill fish yourself, you must be very careful. Fish gall must be removed and try not to break it. Even if it is broken, wash the fish thoroughly to avoid the harm of fish gall to human body.

Extended data:

The role of spring fish:

1, good hair

Spring fish contains a variety of nutrients, and eating more can make people's hair better.

2. Brain health

Most fish have a good brain-nourishing effect. Eating more spring fish can also supplement brain nutrition and make people smarter. Children are suitable for eating more.

3. Benefiting the liver and strengthening the spleen

Eating spring fish also has a certain protective effect on human liver and spleen.

Step 4 moisten intestines

The meat of spring fish is tender and smooth, and it can moisten people's intestines when eaten.

5. Beauty and skin care

The eggs of spring fish contain trace elements, mineral salts and protein. , can enhance skin tension and eliminate wrinkles.

Baidu encyclopedia-spring fish

People's Network-Never eat fish in this place, it is more poisonous than arsenic!