One popular treatment is getting B12 injections
High-protein dog foods that contain a lot of meat, organ meat, poultry, fish, egg, or dairy get some of their vitamin B12 from these ingredients
Almost everyone taking them buys from online sellers, mostly overseas, who label the product research use only to sidestep the rules
When in doubt, discard and reconstitute fresh
However, Vitamin B12 is not always adequately absorbed by the body in the digestion process, thus creating a deficiency
If you develop severe allergic reactions such as difficulty breathing, facial swelling, or widespread rash after a B12 injection, call 999 or go to A&E immediately, as these may indicate anaphylaxis, though this is extremely rare