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
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Symptoms may include hives, difficulty breathing, and swelling of the face, lips, or tongue
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Here is one example research week for the 10 mg vial at 150 mcg (45 units), dosed in the morning
It's important for vitamin B12 deficiency to be diagnosed and treated as soon as possible