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Vegans and vegetarians need to replace the nutrients by other means, B12 injections are an efficient and effective way to replace the nutrients lost from abstaining from meat, eggs, and dairy
Research versions should follow 28-30 day rule
Food and Drug Administration (2025) Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks
Risks The NIH reports that in those with confirmed deficiency, B12 injections can have important benefits
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