Medical Conditions
Some medical conditions and diseases could lead to high vitamin B12 levels. Especially, chronic inflammation and autoimmune diseases are common causes. Four main mechanisms can be responsible for this surge: B12 analog production via bacterial overgrowth, production of excessive B12 from stored amounts in the liver, the mistaken release of vitamin B12, and overproduction of haptocorrin. The list of diseases related to high B12 levels includes liver tumors, cancer, blood disease, liver diseases, kidney diseases, and intestinal problems. [6]
