Oysters are sweet and cold. They are rich in protein, amino acids, taurine, glycogen, glutathione, vitamin A, vitamin B 1, vitamin D, copper, zinc, manganese, calcium and other nutrients. Leek is sweet and warm, and contains nutrients such as protein, carbohydrate, crude fiber, carotene, riboflavin, ascorbic acid, calcium and phosphorus. Oysters and leeks do not conflict in nutrients and can be eaten together.