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3.3 Changes in serum cobalamin by supplementation route and dosage Across 35 comparisons, the mean percentage increase in serum cobalamin following supplementation was approximately 293%, confirming the overall effectiveness of vitamin B12 interventions (Supplementary Table S4)
This dose usually keeps B12 levels good for most patients
Weekly to Monthly Maintenance Dosing After the initial phase, B12 injections are given less often
What to Expect During Treatment B12 injections are administered directly into the muscle, typically in the arm or thigh
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