vitamin b12 injections forum How does deficiency get diagnosed? Vitamin B12

Some researchers use exfoliating treatments periodically to further improve absorption

Risks of taking vitamin B12 injections include taking unnecessarily high amounts (which arent always absorbed properly anyway) and experiencing interactions with other medications.

Since multiple species of Propionibacterium produce no exotoxins or endotoxins and have been granted GRAS status (generally regarded as safe) by the United States Food and Drug Administration, they are the preferred bacterial fermentation organisms for vitamin B 12 production

Heymsfield SB, Greenberg AS, Fujioka K, Dixon RM, Kushner R, Hunt T, et al

However, better can depend on individual factors like health conditions, cost, side effects, and treatment goals