can you have a reaction to b12 injections injection side effects : r/B12_Deficiency B12 Shots at Home: How,

2002 Nov;132(11):3353-5

Ann Clin Lab Sci

According to the NIH Office of Dietary Supplements, B12 plays a key role in: Making red blood cells and preventing megaloblastic anemia Maintaining healthy nerve function and the myelin sheath that protects nerves DNA synthesis Supporting brain function and preventing cognitive decline Converting food into energy (cellular metabolism) Because B12 is found almost exclusively in animal products meat, fish, dairy, and eggs certain groups of people are at much higher risk of deficiency than others

Many people also consider anti-aging support when talking about energy or nutrient therapies

This keeps vitamin B12 levels stable

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