subcutaneous administration of vitamin b12 injections homocysteinemia Injection Sites: All You Need to Know How to Give B12 Injections
Description
According to Bupa, when low B12 starts impacting the nerves, it can cause confusion, depression, poor concentration and forgetfulness symptoms that can "mimic dementia"

Your provider may be able to modify your treatment or find ways to adapt to these changes and limit their effects

If you have an underlying health condition, make sure to have access to any medications that you are currently using

It is also possible that some of the neurological effects of deficiency at a developmentally sensitive stage may not be reversible