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The unbound B12 then combines with another protein (called intrinsic factor, which is secreted by cells in the stomach) before it is absorbed by the body in the small intestine and put to work
Availability: Larger-volume orders are subject to current inventory
The exact timing depends on the patients needs, like how severe the deficiency is and how well they absorb the vitamin
The best peptide companies use chromatographic separation to remove impurities in every batch, and the expensive process contributes increasingly to the final vial price
These usually subside as the body adjusts to the medication
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