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It is required for numerous biological processes, including red blood cell formation, homocysteine metabolism and the methylation of myelin, which forms the protective sheath surrounding nerves
In deficiency, the body makes abnormally large, inefficient cells (megaloblastic anemia)
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While B12 plays important roles in cell metabolism, it has not been shown to directly enhance energy in people without a deficiency
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Insulin resistance and diabetes mellitus in transgenic mice expressing nuclear SREBP-1c in adipose tissue: model for congenital generalized lipodystrophy
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