An oyster is very much like milk for it contains balanced nutritious substances. Oysters is a nourishing food, rich in vitamins A, B, C, and D and iron. Oysters cultured in the clean sea of Tongyeong have been rated as having the best quality in the world by the FDA of the United States. Domestic and foreign exports of oysters contribute to the development of the regional economy. An oyster is easy to digest for all ages specially, it offers rich calcium in a form to absorb fast.