Vitamin B12 is a vital nutrient essential for maintaining a healthy nervous system, supporting red blood cell formation, and producing DNA.

When vitamin B-12 can’t be absorbed in the gastrointestinal tract, it results in pernicious anemia. Hemolytic anemia occurs when red blood cells are broken up in the bloodstream or in the spleen.

Symptoms include fatigue ... a deficiency of one or both vitamins for many reasons, which include: Pernicious anemia is a ...

THE essential lesion in adult pernicious anemia is a lack of production of intrinsic factor that is invariably associated with chronic atrophic gastritis or gastric atrophy. The gastric lesion ...

Vitamin B12 deficiency symptoms include canker sores, a swollen tongue, and fatigue. B12 deficiency is often caused by veganism, Crohn's disease, or pernicious anemia. To treat vitamin B12 ...

Vitamin B12 deficiency is a common health problem that can have serious consequences. Maintaining adequate amount of vitamin B12 intake through diet or supplements is important to prevent health risks ...

Anemia is the most common blood disorder in the U.S. It occurs when your body doesn’t have enough healthy red blood cells.