can a b12 injection make you feel sick Why do I worse after injection? What Does a B12 Shot

Absorption Issues and Risk Factors Some people are more likely to lack B12 because of how their body absorbs it

Serious side effects may include allergic reaction (skin rash, fever, facial swelling, or difficulty breathing)

This causes a decrease in liver function that will lead to complications such as cirrhosis or even death

It is required for neurological function, DNA creation, red blood cell formation, homocysteine regulation (an amino acid recognized as being a marker for a number of diseases), and acts as a cofactor for a number of processes and reactions in the body

Statements Data availability statement The original contributions presented in the study are included in the article/Supplementary material, further inquiries can be directed to the corresponding authors