When her doctor finally tested something called methylmalonic acid (MMA), it was high at 0.6 mol/L (normal is under 0.4) meaning her cells werent actually using all that B12 floating around
Healthcare providers should ensure appropriate documentation, informed consent, and risk mitigation strategies
This makes injections particularly effective for people seeking quick energy support, enhanced mental clarity, and improved overall wellness
It is a research compound and, where sold through compounding pharmacies, an off-label/unapproved preparation, not an over-the-counter bodybuilding supplement
More recently, a longitudinal study among 3,849 community-living older adults in Ireland found that low vitamin B 12 serum concentrations ( 258-601 pmol/L) (101)