Fast Five Quiz: Lactose Intolerance

B.S. Anand, MD


March 21, 2022

Patients with lactose intolerance often develop abdominal fullness/bloating, nausea, abdominal pain, diarrhea, and flatulence. Symptomatic variability is dependent on the amount of ingested lactose, the residual lactose activity, and the small bowel transit time. The signs and symptoms typically manifest 30 minutes to 1-2 hours after ingestion of milk-containing products and can last as long as 48 hours.

Learn more about the presentation of lactose intolerance.


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