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why do vitamin b12 injections hurt What happens if you inject wrong? Are Vitamin B12 Shots Right
Description
Cognitive Issues: Difficulty with memory and concentration

PMID: 27456173

Intramuscular B12 injections bypass the gastrointestinal tract entirely and are recommended for malabsorption conditions or persistent oral intolerance
Svensson, J., Lall, S., Dickson, S
