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The aim is to get B12 into the body without going through the digestive system
Why Do Some People Feel More Pain Than Others
Needle gauge (typically 2325 G) and length (1.01.5 inches for average adults) are selected based on muscle depth and body composition
pubmed.ncbi.nlm.nih.gov/10229638 Zapadka KL, Becher FJ, Gomes Dos Santos AL, Jackson SE
Avoid repeated injections in the same location Repeated injections in an area that has already been affected can worsen scar tissue formation and delay healing
Reduced serum vitamin B12 levels ( 50%)
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