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Results 1 - 1 of 1 for Intrinsic factor deficiency
  1. Vitamin B12 From the National Institutes of Health (National Institutes of Health, Office of Dietary Supplements)  
    ... pernicious anemia , an autoimmune disease , can’t make intrinsic factor. As a result, they have trouble absorbing vitamin B12 from foods and dietary supplements. Vitamin B12 deficiency affects between 3% and 43% of older adults. ...
    https://ods.od.nih.gov/factsheets/VitaminB12-Consumer - Drugs and Supplements