Epidemiological studies indicate that as many as 15% of inflammatory bowel disease (IBD) patients may use cannabinoids to ameliorate some of their symptoms, including improvement in diarrhea, abdominal pain and appetite.

Although the findings of studies examining the efficacy of cannabinoids in Crohn’s disease indicate that cannabinoids do not improve inflammatory markers or endoscopic score, the results indicate that THC reduces the Crohn’s disease activity index by >100 points (on a scale of 0–450).