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Read Next: Vitamin B12 Side Effects & What They Mean
Because there is more fat loss, your body has more energy
hi I find it very easy to reach either arm but admit people do ask me that,I cant see why it would be a problem I just sit on end of bed with stuff all laid out on a clean towel and sharps bin handy,draw up b12 with a red filter needle,personal preference here,then discard and do the injecting with the orange needle , if the b12 is cold or you do have a bead of it on injecting needle then yes your right it can sting but again that is a rarity for me
Usually, they go away with time but if these symptoms persist for a longer duration, please consult your doctor
Your genetics do not cause the autoimmune attack, but they do shape how efficiently you absorb, transport, and use B12 once it is in your system