injecting b12 into a vein What Happens If You Inject Wrong? · PA Relief How to Give a B12
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At-risk groups, including the elderly, vegetarians, vegans, and individuals with gastrointestinal disorders, may need B12 injections for deficiency prevention
If symptoms do not improve despite adequate B12 replacement, further investigation for other causes of nerve pain will be necessary

Subsequently, Sartini et al

b Dose and vitamin B 12 form not mentioned
Additionally, there is an increase in worldwide obesity due to changes in eating pattern and lifestyle