how often should you have a vitamin b12 injection B12: Frequently I Get It? how often can you have

Haemoglobin is the oxygen carrying metalloprotein (iron-containing protein) produced by mature red blood cells that distributes oxygen to all cells of the body

If you have side effects, concerns, or notice health changes, talk to your provider

[1] Contamination risks, potency variations, and sterility concerns represent significant potential hazards with compounded injectable medications

World Anti-Doping Agency

Unless the argument is that those people can access their B12 stores and you cannot, but I don't think we can assume that

If your energy or focus is lagging, a B12 boost is a quick, low-cost way to support your metabolism and nervous system