cockles

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cockles (arkshell) Several types of marine bivalve molluscs of genus Cardium, often sold preserved in brine or vinegar. A 50‐g portion is a rich source of iron, iodine, and selenium; a source of protein and copper; contains 0.2 g of fat, of which 33% is saturated; supplies 25 kcal (105 kJ).

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