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How to inject vitamin B12 in your arm Instructions to inject vitamin B12 into your arm B-12 injections are often given in the arm and especially, in medical terms, the deltoid part of the shoulder
In diabetes, extended periods of high blood sugar levels can cause nerve damage
Comprehensive Health Support Vitamin B12 also supports a healthy nervous system, helping to maintain the protective myelin sheath around nerves
There are no documented serious adverse effects from taking excess vitamin B12
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