1. Oyster, commonly known as oyster, belongs to mollusca, bivalve and Pinctada. It is the largest cultured shellfish in the world, one of the important marine biological resources available to human beings, and a globally distributed species. Oyster is not only delicious and nutritious, but also has unique health care function and medicinal value. It is a kind of seafood treasure with high nutritional value. The zinc content of oysters ranks first in human food. It is believed that oysters have the functions of treating weakness, relieving erysipelas, lowering blood pressure, nourishing yin and strengthening yang.

2. As a kind of high-quality shellfish, oyster not only has delicious meat, but also its meat and shell can be used as medicine, so it has high medicinal value. Oysters were first recorded in Shennong Herbal Classic, which listed them as top grade. Among them, it is recorded that "oysters are salty and flat in taste, which can control typhoid fever, cold and fever, warm malaria, frighten anger, relieve rat fistula, make women take red and white for a long time, strengthen joints, kill evil spirits and prolong life."