A member asked:

Can irritable bowel syndrome cause vitamin b12 and vitamin d deficiency??

A doctor has provided 1 answer

Not likely: Irritable bowel syndrome (IBS) is characterized by bloating, abdominal pain, diarrhea, and/or constipation. The colon appears normal when examined on colonscopy. Because the lining is normal, absorption of nutrients is not impaired by IBS. Lack of vitamin D and B-12 can be due to lack of absorption due to other illnesses, or simply lack of sufficient ingestion via diet-B-12, and lack of sun-vitD.

Answered 2/5/2019

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