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That is a significant subcutaneous injection
Possible explanations include: Placebo effect : Expecting increased energy may influence perceived alertness Correction of deficiency : People with B12 deficiency often experience fatigue and disrupted sleep patterns
Supports detoxification Glutathione binds and neutralizes toxins in the liver, the bodys primary detoxifier
However, nearly all data come from lab and animal studies rather than controlled human trials, so claims about systemic hormone changes warrant caution
PMC 4453489
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