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Most users find these gastrointestinal effects subside over time as the body adjusts, but some people cannot tolerate the medication at all
The peptide's unusual gastric stabilitysurviving extreme pH conditionsdistinguishes it from most peptides, but in solution it remains susceptible to oxidation, hydrolysis, and bacterial contamination
This deficiency can result from conditions such as pernicious anemia, certain gastrointestinal disorders, or a diet low in animal products
Neurological recovery may take months and can be incomplete if deficiency is prolonged
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