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glutathione drips bebefits Injections: Side Effects & Benefits Glutathione IV Therapy: What You
Description
This lack of regulation is a significant concern

PLoS One 2015;10:e0129915 10.1371/journal.pone.0129915 [DOI] [PMC free article] [PubMed] [Google Scholar] 17

A serum B12 test (and ideally methylmalonic acid or homocysteine if your B12 is borderline) gives you a real answer rather than a guess

PMCID: PMC5612213
