The objection to GM15 was raised in the literature by the authors Gapeyev et al
doi:10.1074/jbc.M506162200 Wu J, Jin Z, Zheng H, Yan LJ
75 It seems plausible that severe vitamin B 12 deficiency can also be associated with increased risk and severity of infections, because this deficiency affects the functions of phagocytes, production of interferon, replication of viruses, and maturation of T lymphocytes
But if youre completely normal, we have no idea where the risk-benefit ratio is
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10.1016/S0168-8278(14)60703-0 [DOI] [Google Scholar] Hewage S
