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Delayed gastric emptying extends the time B12 spends in the acidic stomach environment, which might initially seem beneficial

A more recent study showed that taking a pre-workout supplement containing vitamin B12 did not improve performance (12)

What to Expect from a B12 Shot To recap, heres what you need to know: How long does a B12 shot last

pylori infections are fairly common, and most dont result in autoimmune gastritis.[ref][ref] Autoimmune gastritis and pernicious anemia often coincide with other autoimmune diseases, including vitiligo, oral lichen planus, Addisons disease, and type 1 diabetes.[ref] How is pernicious anemia diagnosed

As a result, many healthcare providers are not getting proper reimbursements