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

B12 injections (hydroxocobalamin) are available on NHS prescription for treating confirmed vitamin B12 deficiency

Vitamin B12 (cobalamin) plays a key role in: Making healthy red blood cells (helping prevent certain types of anaemia) Supporting nerve function Helping normal energy metabolism Supporting cognitive function and mood (when deficiency is present) Because the body doesnt produce B12, we rely on dietary sources (primarily animal products and fortified foods) and on absorption through the gut