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- You are over the age of 50, as the ability to absorb B12 decreases with age

[DOI] [PMC free article] [PubMed] [Google Scholar] 21.Gojkovic S., Krezic I., Vranes H., Zizek H., Drmic D., Vuletic L.B., Milavic M., Sikiric S., Stilinovic I., Simeon P., et al
Some patients may experience mild injection site reactions, but these are typically temporary
But, weight loss can be aided by what vitamin