Ключевые слова: b, b12, beef, cheese, clam, cobalamin, collection, concept, containing, dairy, diet, eating, egg, fish, flat, food, giblets, green, group, health, healthy, ingredient, meat, medicine, metabolism, mineral, natural, nutrition, octopus, offal, organic, ousters, pile, pork, product, rich, sardines, seafood, set, sources, spinach, sprats, top, trout, view, vitamin,