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Reported adverse effects included mild injection site reactions and transient headaches
This method is chosen for its potential to bypass the digestive system, ensuring more efficient absorption of the vitamin into the bloodstream
However, approximately 1% of any oral dose is absorbed passively through diffusion across the intestinal mucosa, regardless of intrinsic factor
For weight loss patients whose exercise capacity is limited by fatigue, correcting B12 deficiency often produces a meaningful improvement in what they're able to do
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