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...condition where the body can't absorb enough Vitamin B12

Pernicious Anemia is a type of Vitamin B12 deficiency anemia that occurs when the body cannot absorb enough Vitamin B12 from the digestive tract. This is often due to a lack of intrinsic factor, a protein produced in the stomach that is necessary for Vitamin B12 absorption. Without sufficient Vitamin B12, the body cannot produce enough healthy red blood cells, leading to symptoms like fatigue, weakness, and neurological issues.