Some factors that influence how long the shot lasts include: Lifestyle and stress levels Diet and alcohol consumption Existing health conditions (e.g., pernicious anemia, digestive disorders) How quickly your body uses or excretes B12 If your energy starts fading or symptoms return before your next scheduled shot, let your provider know
B12 is naturally found in animal products like meat, dairy, and eggs, making vegetarians and vegans more susceptible to deficiencies
Your GP may arrange periodic blood tests to ensure B12 levels remain adequate, though clinical response is generally more important than specific blood values once treatment is established
It is mainly produced by the liver (accounting for 75 % of circulating IGF-1) secondary to growth hormone (GH) and insulin endocrine stimulation in the liver
Research-grade Bacteriostatic Water manufactured to USP standards contains no reducing agents
For additional clinical context, review Cleveland Clinic vitamin B12 injection information