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The duration of delayed-release could thus be optimised by altering the thickness of the eroding layer

doi: 10.1038/jid.2010.376

The bioavailability is likely lower than injectable forms, but the convenience of oral administration may offset this for some applications

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Gastrointestinal conditions such as celiac disease, Crohns disease or surgical changes like gastric bypass Older adults who may have reduced B12 absorption People who follow a strict vegetarian or vegan diet, as B12 is mainly found in animal-based foods People taking medications like PPIs or metformin or those with folate deficiency Real reddit experiences Below are some first-hand accounts from Reddit users: I was diagnosed with pernicious anemia after months of fatigue and neuropathy