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A vicious cycle of these adverse factors culminates in death, disability, and vegetative state (Toklu and Tmer, 2015)
Mood and Well-Being Low levels of vitamin B12 have been associated with mood disorders such as depression and anxiety
This means that it is not possible to overdose on vitamin B12, and as far as we know there is no upper limit on the amount of B12 that can be taken safely by an otherwise healthy person
Puccio AM, Yue JK, Korley FK, Okonkwo DO, Diaz-Arrastia R, Yuh EL, et al
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