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Standard research protocols generally use 500600 mcg daily, administered as a single morning dose or split into 250300 mcg twice daily

The Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) tool was used to assess the certainty of the evidence for the two primary biochemical outcomesserum vitamin B12 concentration increase and homocysteine reductionacross all included studies, and separately for randomised controlled trials (RCTs) and observational studies

Are there any side effects associated with B12 shots

Insurance companies usually offer drug coverage for FDA-approved uses, and Ozempic is only approved for type 2 diabetes