While B12 is readily available in animal-derived foods like shellfish, eggs, dairy products, and meats, some individuals may have difficulties absorbing it through their digestive systems
For investigational compounds such as retatrutide, reconstitution instructions are specified in the trial protocol and IMPD, and are followed by trained trial site staff
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It affects how well they work and how safe they are
Not many stores carry it as a standard item
In the United Kingdom, vitamin B12 deficiency is relatively common, with prevalence varying depending on the population studied and the biochemical threshold used for diagnosis