Describe causes and symptoms of pernicious anaemia. What recommendation you will give for preventing pernicious anaemia in vegans?

Pernicious anemia is a type of megaloblastic anemia that primarily results from the body's inability to absorb sufficient vitamin B12 from the gastrointestinal tract. It is often caused by an autoimmune condition where the immune system attacks the cells in the stomach that produce intrinsic factor—a protein necessary for vitamin B12 absorption in the small intestine. Without intrinsic factor, vitamin B12 cannot be effectively absorbed, leading to a deficiency that affects red blood cell production and overall health.

Causes:

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