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Importantly, persistently high serum B12 in the absence of supplementation should prompt GP assessment, as it may indicate underlying disease processes
Older adults (there is reduced stomach acid production with age, and acid in the stomach is necessary to absorb vitamin B12)
Contraindications of Vitamin B12
I drink water and quit drinking pop
Cases of allergic reactions to hydroxocobalamin with tolerance to cyanocobalamin were documented in several instances (1, 2, 3)
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