Vitamin B12 has many functions in the human body, such as helping the formation of DNA and supporting the nervous system.
Researchers at the University of Michigan Health warned that a vitamin deficiency can damage nerve cells. And this is manifested by certain symptoms. If the level of vitamin B12 in the body remains low for a long time, numbness or tingling in the fingers and toes may occur. Other signs of this condition are poor balance, depression, and cognitive decline.
Although most of these symptoms disappear with treatment, some deficiency problems may be irreversible. The experts noted that a physician should be consulted if symptoms of vitamin B12 deficiency are observed.