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Nutritional Information for Oysters

Oysters are a low calorie, low fat and low-cholesterol source of vitamin B12. It is a complete protein, having all the essential amino acids in the proper proportions. The following article covers the calories, vitamins, fats, minerals and protein concentrations of a medium-sized Pacific oyster.

  1. Calories

    • A 25-gram Pacific oyster contains 40.8 calories. Carbohydrate calories make up 10.2 grams, fat calories make up 10.4 grams and protein calories make up 20.2 grams.

    Vitamins

    • A 25-gram Pacific oyster is a good source of vitamin B12, containing 7.2 micrograms, or 120 percent of your daily recommended value for a 2,000 calorie diet. All other vitamin concentrations are in trace amounts.

    Fats and Fatty Acids

    • A 25-gram Pacific oyster is low in fat, containing 1.1 total fat grams. It contains 300 milligrams of saturated fat, 200 milligrams of monounsaturated fat and 400 milligrams of polyunsaturated fat. It also contains 370 milligrams of omega-3 fatty acids and 16 milligrams of omega-6 fatty acids.

    Minerals

    • A 25-gram Pacific oyster is rich in three minerals: zinc, copper and selenium, having 55, 33 and 55 percent of your daily recommended value.

    Protein

    • A 25-gram Pacific oyster has a small amount of protein, only 4.7 grams worth, which is 9 percent of your daily recommended value.

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