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  1. B12維他命 - 購物搜尋結果

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  2. en.wikipedia.org › wiki › Vitamin_B12Vitamin B12 - Wikipedia

    Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. [2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. [3]

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  4. en.wikipedia.org › wiki › Vitamin_B12-binding_domainVitamin B12-binding domain - Wikipedia

    In molecular biology, the vitamin B12-binding domain is a protein domain which binds to cobalamin (vitamin B12). It can bind two different forms of the cobalamin cofactor, with cobalt bonded either to a methyl group (methylcobalamin) or to 5'-deoxyadenosine (adenosylcobalamin).

  5. en.wikipedia.org › wiki › B_vitaminsB vitamins - Wikipedia

    B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. [1] They are a chemically diverse class of compounds; some contain sulfur and B12 contains cobalt. [1] Dietary supplements containing all eight are referred to as a vitamin B complex.

  6. en.wikipedia.org › wiki › VitaminVitamin - Wikipedia

    Vitamins are organic molecules (or a set of closely related molecules called vitamers) that are essential to an organism in small quantities for proper metabolic function. Essential nutrients cannot be synthesized in the organism in sufficient quantities for survival, and therefore must be obtained through the diet. For example, vitamin C can ...

  7. en.wikipedia.org › wiki › Pernicious_anemiaPernicious anemia - Wikipedia

    Pernicious anemia is a disease where not enough red blood cells are produced due to a deficiency of vitamin B 12. [5] . Those affected often have a gradual onset. [5] . The most common initial symptoms are feeling tired and weak. [4] .

  8. en.wikipedia.org › wiki › Vitamin_D_deficiencyVitamin D deficiency - Wikipedia

    Vitamin D deficiency or hypovitaminosis D is a vitamin D level that is below normal. It most commonly occurs in people when they have inadequate exposure to sunlight, particularly sunlight with adequate ultraviolet B rays (UVB).

  9. en.wikipedia.org › wiki › Vitamin_DVitamin D - Wikipedia

    D014807. Legal status. In Wikidata. Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects. [1] [2] [3] In humans, the most important compounds in this group are vitamin D 3 ( cholecalciferol) and vitamin D 2 ( ergocalciferol ).

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