oyster

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oyster Marine bivalve mollusc, Ostreidae and Crassostrea spp. One dozen oysters (120 g of the edible portion) are an exceptionally rich source of vitamin B12; a rich source of iron, iodine, selenium, and vitamin D; a good source of protein and niacin; a source of vitamins A, B1, and B2, and supply 85 kcal (360 kJ).

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