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administering vitamin b12 shots: b12 injection sites How to Give a Injection: Step-By-Step Instructions B12 Injections at Home -
Description
People with Specific Health Conditions: Doctors often recommend Vitamin B12 injections for those with pernicious anemia

You have anemia

For example, having sluggish energy or a poor appetite might be reasons to pursue this treatment

Have you definitely had a "Total IgA test" which checks for IgA deficiency
