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Ferraz AB et al
While deficiencies take time to develop, people with gastrointestinal disorders, low stomach acid (common with aging), or those following vegan or vegetarian diets may struggle to get enough B12
Having a B12 shot when you are feeling poorly can be a great way to give your immune system a boost to speed your recovery
Therefore, you might be able boost hemoglobin production with vitamin B12, and therefore potentially normalize low iron levels
Gastrectom y
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