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Signs That Vitamin B12 is Working People who begin Vitamin B12 therapy often ask about the time needed for its effectiveness and the noticeable indicators
It is generally very well-tolerated and fits easily into most routines
Clinically meaningful responses in insulin-resistant patients typically include a reduction in fasting insulin of 20-40% and an improvement in HOMA-IR within 8-12 weeks at therapeutic doses, though individual variability is wide [1]
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