Research

Mixed

Adherence to a Mediterranean diet is associated with decreased mortality and lower disease activity in patients with Inflammatory Bowel Disease (IBD), though direct causal evidence from large randomized controlled trials is currently lacking.

If you have IBD, increasing your adherence to a Mediterranean-style diet (high in vegetables, fruits, whole grains, nuts, and olive oil; low in red meat) is associated with lower mortality and reduced disease activity. While large randomized trials are still pending, current observational data strongly supports this as a beneficial adjunctive strategy.

ModerateQualifiesMEDIUM confidence
A recent analysis of patients with IBD in three large cohorts... demonstrated an association with MD adherence and decreased mortality following IBD diagnosis (HR 0.69; 95% CI 0.49–0.98)... MD adherence was positively correlated with IBD questionnaire (IBDQ) scores... and negatively correlated with CRP values and the clinical Harvey–Bradshaw index (HBI)... A large cohort study that was recently published suggested that greater adherence to an MD was also associated with a lower risk of developing CD, but not UC.
Yan Jiang et al. · Nutrients · 2021

Why this rating

Evidence consists of observational studies, small uncontrolled trials, and cohort studies; no large-scale RCTs confirming clinical remission are cited as completed.

Source

Therapeutic Implications of Diet in Inflammatory Bowel Disease and Related Immune-Mediated Inflammatory Diseases

Yan Jiang et al. · Nutrients · 2021

DOI 10.3390/nu13030890

narrative_reviewCited 89×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →