is taking b12 injections dangerous Vitamin | Energy Boost Sublingual B12 vs. B12 Injections:

Vitamin B12 shots are administered most often in those with genetic conditions that block absorption and people with the disorder called pernicious anemia, which can result in severe malabsorption and deficiency

However, this is not the case

Dual coding requires separate supporting documentation for each condition

Evidence Gaps: Most positive findings come from topical formulations or small studies

[9] Visual disturbances have been reported in patients with Leber hereditary optic neuropathy, and rapid B12 administration may precipitate optic nerve atrophy in this genetically predisposed population, mandating extreme caution or alternative therapy

Maintaining adequate vitamin B12 levels in your body will keep your skin, hair, and nails healthy