Vitamin B12 deficiency affects the heart and brain and damages the nerves. These are its causes and methods of treatment

Dr. Abdullah Al-Dhiabi, a consultant in internal medicine and digestive system, confirmed that vitamin B12 plays an important role in many body functions, such as: brain cells, nerves, heart health, blood vessels, building DNA in all cells of the body, and the formation of red blood cells. Pointing out that the main source of this vitamin is animal foods. As the human body is unable to produce this type of vitamin itself.