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Older people tend to have lower amounts of stomach acid, which the body needs to absorb B12
Visible results typically appear within 6-8 weeks of consistent daily use
The exact dosage ultimately depends on the ingredients in the injection
This suggests a temporary effect on blood pressure regulation or hydration status rather than a direct neurological impact
Vitamin B12 absorption occurs primarily in the terminal ileum through intrinsic factor-mediated absorption (for both dietary and supplemental B12) and passive diffusion (particularly relevant for high-dose supplements)
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