The participants drank 60 milliliters of tart cherry juice or a placebo daily.

Health-related quality of life (the primary outcome) improved in the tart cherry juice group, compared with the placebo. This improvement was clinically significant.^[1]

For secondary outcomes, disease activity and fecal calprotectin improved in the tart cherry juice group, compared with the placebo group, with a large effect size reported for both outcomes. However, changes in inflammatory biomarkers (e.g., interleukin-6 and TNF-alpha), did not differ between the groups.

Can tart cherry juice help with ulcerative colitis? Original paper