Contact your GP for B12 testing if you have: Symptoms suggesting deficiency (persistent fatigue, pins and needles, memory problems, glossitis) Risk factors for deficiency (vegan diet, gastric surgery, long-term metformin or proton pump inhibitor use) [1] [4] Concerns about whether your current supplementation dose is appropriate Underlying conditions affecting B12 metabolism (kidney disease, liver disease) Unexplained high B12 levels on a blood test when not taking supplements Routine monitoring is essential for patients receiving therapeutic B12 injections
With age, your stomach cells become less efficient and secrete less hydrochloric acid, which means you absorb less B12
Evidence-Base Disclosure The published evidence base for AOD-9604 consists predominantly of preclinical research animal models (often rats or mice) and in vitro cell-culture experiments
You only need a referral if you have a complex medical history
For those truly low on B12, getting injectable B12 for humans can be transformative
It makes it appropriate for a different use case: the person who already controls their diet, exercises consistently, and wants a modest additional push in fat mobilization without the gastrointestinal side effects, nausea, or hormonal disruption that come with GLP-1 agonists