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Elevated serum B12 is usually asymptomatic and discovered incidentally during routine blood tests Common causes include B12 supplementation, liver disease, haematological disorders, and chronic kidney disease Symptoms such as jaundice, unexplained weight loss, or bruising suggest underlying pathology requiring investigation B12 is water-soluble with no established upper safe limit, and excess is naturally excreted by the kidneys Management focuses on identifying and treating underlying causes rather than lowering B12 levels directly Patients with persistent elevation should undergo comprehensive assessment including liver function, renal function, and haematological investigations Table of Contents What Are the Symptoms of High Vitamin B12 Levels
Gastric acid releases vitamin B12 from the food that you consume, which becomes a problem for some older adults because they produce less stomach acid as they age, thereby increasing their risk for B12 deficiencies
Its journey begins in the digestive tract
Table 3: Vitamin B 12 Medication Table The table below is not an exhaustive list of all vitamin B 12 products and therapeutic considerations
doi:10.3390/ijms22158199
