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People who eat a vegan diet and do not take vitamin B12 supplements or eat foods fortified with vitamin B12, are also at risk

Watch for these signs: Dosing advice for patients but "research use only" on the site COAs that can't be looked up on the lab's own website Prices way below what actual pharmaceutical manufacturing costs International shipping and no regulatory paperwork Vague or no answers when you ask about batch traceability Good suppliers have batch documentation, show their quality process, and answer your questions without dodging

IV administration in wellness clinics operates in an enforcement gray zone the FDA has addressed through warning letters but has not systematically shut down

School of Medicine | University of Michigan

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