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Data last updated 07/07/2026

Have you heard about B12 injections for weight loss, but arent sure if they really work

1,2 Serum vitamin B 12 levels may be artificially elevated in patients with alcoholism, liver disease, or cancer because of decreased hepatic clearance of transport proteins and resultant higher circulating levels of vitamin B 12

Benefits and Bioavailability of Vitamin B Complex Injections Vitamin B complex injections, which can include cobalamin and vitamin B12, are quick, effective, and painless injections done in the arm but can also be given in other areas of the body to help treat pernicious anemia

Yes, you can give yourself Vitamin B12 shots if you know how