site for vitamin b12 injection C and Techniques Optimal B12 Injection Sites for
Description
Intramuscular injections bypass the gastrointestinal tract, delivering B12 directly into the bloodstream and producing faster results than oral preparations

While it might seem like a 1000 micrograms (mcg) B12 shot is equal to a 1,000 mcg B12 supplement, its not that simple
No completed human efficacy or safety trial

The vitamin is administered in the office via injections
