how and where do i give a vitamin b12 injection Shots at Home: How, & Often to Inject Yourself Boost Your Energy with B12
Description
I don't know which B12 sort you have been injecting, but some people definately cannot handle cyanocobalamin

[DOI] [PubMed] [Google Scholar] 4.Anthonsen MW, Ronnstrand L, Wernstedt C, Degerman E, Holm C
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Watch for signs of deficiency: Fatigue, dizziness, hair thinning, brittle nails, or mood swings could signal a nutrient imbalance

Your shoulder may feel sore at first, but as time goes on, the pain gets worse and worse
The receptor is specific to the IF-B 12 complex, and so will not bind to any vitamin content that is not bound to IF
