b12 injection time to work How Fast Does a Vitamin Shot Work? How Long Does It Take
Description
High doses of B12 may worsen the disease and cause irreversible damage to the optic nerve
However, B12 injections do not directly cause weight loss or significantly increase metabolism in people who already have adequate B12 levels
Effective 1/1/23
Ease of Administration and Compliance: For certain types of research, particularly those involving numerous subjects or extended durations, the simplicity of oral administration can significantly improve adherence
