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How vitamin B12 injections work, who can benefit most, and the incredible advantages they offer for restoring vitality and preventing long-term complications
It is not approved or intended for human or animal use, and any discussion of biological activity refers only to preclinical or in vitro research
Dosing errors don't announce themselves
The injection involves a small needle into the muscle (usually upper arm or thigh) and feels similar to a flu shot
This is not a complete list of side effects and others may occur
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