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Understanding Vitamin B12 Vitamin B12 is a water-soluble vitamin that occurs naturally in animal products like meat, fish, dairy, and eggs

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In contrast, DIO mice in both groups switched from WD to LD each had significantly increased Proteobacteria relative abundance (represented solely by the genus Parasutterella ) compared to both the WD and the LD controls, suggesting that Proteobacteria relative abundance may be largely influenced by stress or the differences in net energy expenditure (or associated body weight changes) caused by the diet switch

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Am J Physiol Endocrinol Metab