What Are the Causes of Vitamin B12 Deficiency & Malabsorption?
Vitamin B12 is essential for the function of red blood cells and neurons. It participates in many enzymatic processes in the body. B12 can’t be manufactured by the body–it need to be obtained from food. It can be stored in the body for several years. If there is a problem with supply or absorption, it generally takes several years before symptoms appear. There are several common causes of B12 deficiency. The risk of developing a deficiency is greatest among the elderly.