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The science of B12 Clinically essential and widely studied: Vitamin B12 plays a vital role in red blood cell formation, neurological function, and mitochondrial energy production

Retrieved March 15, 2025, from National Health Service

It is intended as a raw material for scientific research and experimental development

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According to the Centers for Medicare & Medicaid Services (CMS), Original Medicare (Parts A and B) covers vitamin B12 injections when theyre medically necessary when: You have a history of low blood levels of vitamin B12 or conditions that are caused by or cause low B12 levels such as certain autoimmune and gastrointestinal disorders