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PMC 5349816
In certain circumstancessuch as pregnancy, concurrent illness, or rapid metabolic turnoverB12 requirements may increase, and dosing adjustments may be necessary under medical supervision
Scientific research frequently involves the evaluation of compounds with distinct structural and analytical characteristics
This prescription form of B12 is the one most often recommended by healthcare professionals, including primary healthcare services, because it stays in the body for longer, only requiring repeat injection every three months
But not everyone who feels tired is B12 deficient, and not everyone with low B12 requires an injection
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