Intrinsic factor is involved in the absorption of vitamin B12. A lack of intrinsic factor can be cau
Intrinsic factor is involved in the absorption of vitamin B12. A lack of intrinsic factor can be caused by a loss of parietal cells, either as a consequence of increasing age or due to autoimmune destruction of the cells (anti-parietal cell antibodies), in which case it is called pernicious anaemia. -- source link
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