Oyster is one of the larger oyster varieties. A big oyster with a shell can weigh more than a catty. It is usually grown or cultivated in the place where rivers and the sea meet, on the shallow sea of the inner bay, which is half salty and half light. Due to the limitation of suitable growth conditions, its quantity is less than that of other varieties, so its economic price is generally higher < P > The main nutrient in dried oysters is zinc. As far as zinc content is concerned, the difference between oysters and oysters is very striking: every 1g of oysters contains 71.2mg of zinc, while oysters with the same weight contain only 9.39mg of zinc, which is 7.6 times that of ordinary oysters. As far as zinc content is concerned, oysters are definitely the best, far ahead of other natural foods, and no other food can be compared with them, so the quality of dried oysters is much better than that of dried oysters.