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Oysters are an excellent source of zinc, iron, calcium, and selenium, as well as vitamin A and vitamin B 12. Oysters are low in food energy; one dozen raw oysters provides only 460 kilojoules (110 kilocalories). [59] They are rich in protein (approximately 9 g in 100 g of Pacific oysters). [60]
Oysters are an especially rich source of zinc, containing “anywhere from 28.1 to 32 mg of zinc per 3 oz serving, which is double the 14 milligrams a day referenced in this study,” Whitaker noted.
Venhuizen points out that oysters are rich in selenium, iron, calcium, potassium, folate and choline and especially high in immune-boosting zinc. “Adding oysters during the cold months can be a ...
Animal-based proteins tend to be high in zinc, “for example, six steamed oysters contain about 50 mg of zinc, and a grilled 3-ounce steak has about 6 mg of zinc,” says Prest.
Adding zinc rich foods to diet. The foods with the highest concentration of zinc are proteins, especially animal meats, the highest being oysters. [5] Per ounce, beef, pork, and lamb contain more zinc than fish. The dark meat of a chicken has more zinc than the light meat. Other good sources of zinc are nuts, whole grains, legumes, and yeast. [55]
Commercial oyster farming was common in the bay until 1995, when the Texas Department of State Health Services suspended the practice, due to an unhealthy annual average zinc level of nearly 2500 mg/kg in oysters, [24] which as filter feeders, are affected by high levels of zinc in the water.
Wild sockeye salmon provides the highest vitamin D content of all salmon species, Largeman-Roth adds, and it's more sustainable than the farmed types. ... oysters and mussels are also low in ...
Shellfish are especially valuable sources of copper, iodine and zinc. Other minerals in shellfish include iron (cockles, oysters and mussels), selenium (crab, octopus, squid, lobster, shrimps and mussels). Shellfish are also high in potassium, with most species providing 10% of the recommended daily amount per 100g serving.