can you give b12 injection with insulin needle Instructions for B12 Shots: Vitamin B12 Injections

I have heard of people being told on this forum that their results were "below measurable" -but never that they were non-existant

The vastus lateralis (outer thigh) is the most commonly recommended site for self-injection because it is easy to see, easy to stabilize, and low-risk

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Decreased stomach acid production also provides an environment conducive to the overgrowth of anaerobic bacteria in the stomach, which further interferes with vitamin B 12 absorption (3)

Diagnosis should be confirmed through serum B12 measurement and clinical assessment by a GP

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