can you overdose on vitamin b12 injections Too Much Symptoms: Signs & Safe Dosage – Bolt Pharmacy Can You Overdose on Vitamin

This mechanism naturally limits absorption when B12 is consumed in large quantities, with excess amounts typically eliminated through the kidneys without causing harm

[1] [6] Always source medications from registered UK pharmacies (you can check registration via the General Pharmaceutical Council) and avoid unregulated online suppliers, as counterfeit or substandard products pose significant health risks

For intramuscular injections, the common sites for B12 injections are the arm, upper buttocks, and thigh

[3] Laboratory tests typically measure total B12 rather than the active form (holotranscobalamin), which can sometimes lead to misleading results