If your B12 levels are already adequate, injecting more does not produce documented improvements in energy or cognition in clinical studies
It involves an injection or a series of injections (typically three to five, depending on the compound) of a viscous material which is, in its essence, a synthetic version of normal joint (synovial) fluid
Vitamin B12 shots and supplements are popular among those looking for a quick fix for weight loss
Side effects such as nausea, constipation, acid reflux, stomach pain, vomiting, diarrhea, and injection site reactions are common
Vitamin B12 plays a quiet but critical role in how your body produces energy, forms red blood cells, and maintains a functioning nervous system