Conditions associated with elevated B12 levels include: Liver disease : Hepatocellular damage releases stored B12 into circulation, with levels correlating with disease severity in conditions such as cirrhosis, hepatitis, and hepatocellular carcinoma Renal impairment : Reduced kidney function decreases B12 clearance, leading to accumulation Haematological malignancies : Myeloproliferative disorders, acute leukaemia, and polycythaemia vera can elevate B12 through increased production of B12-binding proteins (transcobalamins) Solid tumours : Certain cancers, particularly those affecting the liver or gastrointestinal tract, may elevate B12 levels A specific concern relates to cyanocobalamin in patients with Leber's hereditary optic neuropathy , a rare mitochondrial disorder
The most effective sites are the deltoid (upper arm), thigh, or buttocks always administered by a trained healthcare provider
I have also accessed other sites for my B12 injections, including, the upper arm (deltoid), thigh (vastus lateralis), and the buttocks (dorsogluteal)
Metformin is an effective and appropriate medication for insulin resistance in PCOS