The worms in the frozen bamboo shoots are sand worms.

Sandworm, also known as "sea ginseng", is an edible insect. Edible substances, and extremely rich in nutrients, contain a lot of protein amino acids, calcium and iron and other trace elements necessary for the human body. Taurine contained in them also has the function of regulating and improving brain function.

Extended data

The sand worm lives in the sea area with sand and mud bottom along the coastal beach, and it is drilled at high tide and lurks in sand and mud caves at low tide, hence its name. The larva or adult of the worm is not segmented, but its muscles are well developed. It usually eats sand grains for a living, and its body structure is simple. After washing the sand grains in the intestine, the whole worm can eat it.

It is distributed in the north and south coasts of China, among which Guangdong, Guangxi and Hainan are rich in resources, and it is also recorded in Fujian and Shandong, but the sand worms produced in the Guangxi coast of Beibu Gulf and the western coast of Guangdong are thick and of high quality.

Baidu Encyclopedia-Sandworm