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We suggest regular blood tests to check: Serum Vitamin B12 levels Methylmalonic acid (MMA) and homocysteine levels Complete Blood Count (CBC) to monitor for signs of anemia These results help us adjust the dose

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This deficiency can occur for several reasons, including inadequate dietary intake, malabsorption, or increased requirements

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Proton pump inhibitor and histamine 2 receptor antagonist use and vitamin B12 deficiency

Description Vitamin B12 20 mL For research use only