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Without ongoing B12 replacement, deficiency and symptoms will typically recur within months to years of discontinuation
never published (verified 2026-05-19)
Maintains Sterility Each vial puncture introduces a small contamination risk from the needle or the environment
Age, digestive conditions, certain medications, and even long-term stress can interfere
Those on vitamin B12 deficient diets such as vegans and sometimes vegetarians tend to reabsorb more B12 than from their food intake
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