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Can B12 injections cause a serious allergic reaction
Doing the same at home can often total under $80, including supplies
A doctor may choose injections over oral supplementation to limit any barriers to absorption
B12 is an essential vitamin that you can become deficient in, particularly if you follow a restricted or special diet or if you suffer from certain health conditions or if you are over a certain age
If they dont work well, B12 can build up and cause problems
Start with doses at the lower end of the dosing range
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