A much-cited 2000 study from the American Journal of Clinical Nutrition found nearly 40% of the population have B12 levels that fall at or below what experts consider the low end of normal
However, due to their reversibility, these side effects do not pose any lasting danger
O'Leary OE, Canning P, Reid E, Bertelli PM, McKeown S, Brines M, Cerami A, Du X, Xu H, Chen M, Dutton L, Brazil DP, Medina RJ, Stitt AW
Two of these methylcobalamin and 5-deoxyadenosyl cobalamin are primarily used by the body
ARA-290 targets peripheral nerve repair and inflammation through the innate repair receptor, while Dihexa works centrally on synaptic architecture