what is a b12 injection for Methylcobalamin (Vitamin B12) Are B12 Shots Safe? Royal

chronic liver disease and hepatitis may present with elevated levels Renal impairment : Reduced clearance can contribute to accumulation, though this is rarely clinically significant Solid tumours : Certain malignancies, particularly hepatocellular carcinoma and metastatic disease, may elevate B12 levels [3] Evidence suggests that unexplained markedly elevated B12 levels without supplementation may sometimes be associated with underlying disease

Sources: Neelakantan H, Brightwell CR, Graber TG, et al

[DOI] [PubMed] [Google Scholar] 8.Hogeveen M, Blom HJ, den Heijer M

This will give them a sense of whether youre not consuming enough iron or may have a condition that inhibits absorption of iron into your blood