The main parts of the squid that can not be eaten are: eyes, internal organs, teeth, two bones in the back.

Secondly, the sucker of the squid whiskers and the surface of that layer of black film, squid whiskers have a lot of dense circles, this is also inedible, because this sucker is not only very dirty, but also contains harmful substances to the human body, so we must be careful when cleaning squid.

The squid's internal organs must not be eaten, because this is the squid's dirtiest place, in addition to the squid's teeth, the black film on the surface can not be eaten, eaten will be unfavorable to the body, so we must remember to remove when cleaning squid.

Nutritional composition of squid

Squid is rich in protein, and essential amino acids, a large number of taurine. Squid also has a small amount of fat and carbohydrates, contains a large amount of cholesterol, squid in the trace elements, as well as calcium, phosphorus, selenium, potassium, sodium content is high.

Squid has a high nutritional value because it is rich in calcium, phosphorus and iron, which is good for bone development and hematopoiesis, and can effectively treat anemia, as well as a large amount of oxalic acid, which can inhibit cholesterol elevation and improve liver function.

But squid must be cooked before eating, because there is a peptide component in fresh squid, which can lead to intestinal motility disorders if consumed uncooked.