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However, the lack of human clinical trials means long-term safety in people remains unknown
Intramuscular (IM) : Common sites include the upper arm (deltoid muscle), thigh (vastus lateralis), or buttocks (gluteus medius)
Injection Process The B12 injection is quick and relatively painless, typically administered in the arm or hip
How to prevent vitamin B12 deficiency Vitamin B12 deficiency due to diet is rare in the U.S
The short answer: the ideal needle size for a B12 injection depends on the injection method
I feel better within minutes
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