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Doing so can increase discomfort, swelling, or infection at the injection site
These alternatives may become relevant if you struggle with injections or want to explore different options
While some people may experience a boost in energy within a few days, its important to remember that B12 deficiency can be a complex issue
(For example, taking large amounts of folic acid has been found to mask vitamin B12 deficiency in some patients.) What Are B12 Shots
Can B12 shots interact with any medications
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