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On the other hand, a vitamin B12 deficiency appears to cause a loss of appetite in some people, leading to weight loss rather than weight gain ( That said, the current evidence is too weak to suggest that a vitamin B12 deficiency has any strong or specific impact on weight be it weight gain or loss

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Vitamin B12 itself can stay stored in the liver for up to 3 to 5 years

accessed November 25, 2020

[DOI] [PubMed] [Google Scholar] MacFarlane 2011 MacFarlane AJ, GreeneFinestone LS, Shi Y
