Yes, possible.: Intrinsic factor (if) is secreted by the stomach and needed for vitamin B12 absorption. Gastric ulcers can reduce the secretion of if and treatment for ulcers can reduce stomach acidity, which is needed to free up B12 from natural proteins to allow binding to if. B12 deficiency affects myelinated peripheral nerves, and can cause dysfunction of sensation and muscle cells.
Answered 10/1/2019
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