Common examples include fatigue or low energy with normal blood results, brain fog or reduced concentration without confirmed vitamin B12 deficiency, stress-related exhaustion or burnout, increased metabolic demand such as during illness recovery, high workload, or intense training, restrictive or inconsistent dietary intake, or suspected poor oral absorption despite normal serum levels
Increased metabolism: The faster your metabolism works, the more calories you burn, even when doing nothing at all
Intramuscular injections are reserved for cases where oral treatment is insufficient, poorly tolerated, or where deficiency has caused neurological complications
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Insert the needle in the center of the v-shape to administer the B12 injection
Usually, subcutaneous injection is adopted, and the dosage and treatment course need to be individualized