can b12 injection cause fever Vitamin Side Effects and Safety Benefits of Vitamin B12 Shots

The immune response to herpes simplex virus encephalitis in mice is modulated by dietary vitamin E

Healthy Hair, Skin, and Nails B12 contributes to cell growth and renewal, impacting the health of your hair, skin, and nails

Animal studies show a more pronounced impact, where AOD9604 increased lipolysis and prevented fat accumulation, but these results dont fully translate to humans (example)

According to USDA Agricultural Research Service data based on NHANES, approximately 6% of adults aged 60 and older in the United States are vitamin B12 deficient, defined as plasma B12 below 148 pmol/L (2009)

If this is the case in your letter, please ask them to provide you with this evidence