b12 injections im or sc Cyanocobalamin (B12) Injection 1000 mcg/mL, Multiple Dose Vial 1 mL, 25/Tray Best Vitamin B12 Injection Site:

Ive been taking the B12 (methylcobalamin) injections for two months now and have already noticed a massive difference in my energy level

[DOI] [PMC free article] [PubMed] [Google Scholar] 211.Wang YY, Attane C, Milhas D, Dirat B, Dauvillier S, Guerard A, et al

The initial weeks involve adaptation to reduced caloric intake and altered hunger signaling

Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest

Absorption Issues: People with problems absorbing B12, like pernicious anemia or certain gut issues, might need different doses