Precautions: Allergic-type reactions following the injection of products containing thiamine have been reported
In case a deficiency is diagnosed, the doctor may conduct additional tests, such as antibodies test, Schilling test to establish the type and causes of the same
This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation
The effectiveness of B12 lipo injections for weight loss varies, and more research is needed to understand their benefits and risks