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B12 is crucial for converting food into usable energy, so restoring optimal levels can significantly reduce tiredness and lethargy
The mechanism is unclear but may relate to rapid B12 mobilization in deficient patients
The necessary bridge from animal pharmacology to human safety and effectiveness has not been established
Taking the injection in a fasted state may enhance metabolic benefits by promoting fat oxidation during the fasting period
B12 injections are typically administered either intramuscularly (IM) or subcutaneously, with common sites being the deltoid, thigh, or gluteal muscles
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