Cannabis use and gastrointestinal tract illnesses: The National Health and Nutrition Examination Surveys, 2005-2018.

Frequent cannabis use is associated with GIT illnesses in a large cross-sectional study of US residents. It is possible that frequent cannabis use adversely affects GIT health, consistent with clinical case reports. Alternatively, patients with GIT illness might self-medicate with cannabis given its antiemetic properties. Prospective studies are needed to understand the effects of cannabis use on GIT health.