prov:value
| - The common sources are cheese, milk, milk products, fortified bread, tofu, yoghurt, vegetables, chicken liver, lentils, soybeans, oysters, poultry, kidney beans, lima beans, fruits, clams, oatmeal, egg yolks, cereals, fishes such as Tuna, Salmon and Halibut, crabs, oysters, nuts, pumpkin seeds, meat and meat products, and salt.
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