The spectrum of action here ranges from the treatment of severe mental illness, which can be partially or even completely cured through B12 therapy, to the treatment of minor sleep disorders
In contrast, B12 injections for weight loss deliver nutrients directly into the bloodstream, offering faster and more reliable results
Some people only need shots until their B12 levels are good
Common indications include: Pernicious anaemia an autoimmune condition where the stomach cannot produce intrinsic factor, a protein necessary for B12 absorption [8] [9] Malabsorption disorders including Crohn's disease, coeliac disease, or following gastric surgery Strict vegan or vegetarian diets with confirmed deficiency though high-dose oral B12 may be sufficient if no malabsorption exists Certain medications such as metformin or proton pump inhibitors that may interfere with B12 absorption [9] [10] Neurological symptoms including peripheral neuropathy, memory problems, or balance difficulties related to deficiency Diagnosis should be confirmed through blood tests measuring serum B12 levels, full blood count, folate, and often anti-intrinsic factor antibodies