High B12 and Folate

Vitamin B12 or B9 (commonly called folate) deficiency anemia occurs when a lack of vitamin B12 or folate causes the body to produce abnormally large red blood cells that cannot function properly.

Red blood cells carry oxygen around the body using a substance called hemoglobin.

Anemia is the general term for having either fewer red blood cells than normal or having an abnormally low amount of hemoglobin in each red blood cell.

 

 

High B12 and Folate