Oyster mushroom is the source of many vitamins and minerals. It is a fungus ecological, with high nutritive values. It is ideal for the preparation of hot and cold appetizers, soups, casseroles or omelets. Apart from the great flavour of the mushrooms, they also have high nutritional value. They include protein, vitamins, large amounts of vitamin PP, folic acid, minerals, trace elements (phosphorus, potassium, magnesium, zinc, sodium, iron, copper). In oysters there also have been found the presence of anti-cancer substances and components lowering cholesterol in blood.