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If no dietary or lifestyle changes are made, energy levels may dip slightly, especially in B12-deficient individuals
it also found increasing memory impairment as B12 levels dropped even whilst within currently defined acceptable ranges and that B12 interventions are effective once levels are less than 300 pmol/L
Follow-up testing usually occurs 612 weeks after initial dosing
Vitamin B12 injections increase blood cell production including white blood cells
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