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Intrinsic factor

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By Jeannette Curtis; Caroline Rea, RN, BS, MS

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Intrinsic factor is a substance produced by glands in the stomach lining. It helps the intestines absorb vitamin B12 so it can be used by the body as needed.

Author:Jeannette Curtis
Caroline Rea, RN, BS, MS
Medical Review:
Last Updated: 05/25/2007