Cure8 research brief
The review found higher ultra-processed food intake was linked to increased odds of Crohn’s disease relapse — a potentially actionable signal because diet can be changed. However, the evidence certainty is very low, so this is hypothesis-generating rather than definitive.
Adults with Crohn's disease in remission, clinicians who counsel IBD patients about diet, researchers studying diet–microbiome–IBD links, and people interested in relapse prevention strategies.
This is a systematic review and meta-analysis of prospective cohort studies and randomized trials that searched multiple databases through early 2025 and pooled results from three prospective cohorts (276 patients).
The pooled odds ratio favored an association between higher UPF intake and relapse (OR 2.27), but the authors rated the overall certainty of evidence as very low using GRADE. The paper points to plausible biological mechanisms (gut microbiome changes, intestinal permeability) but cannot establish causation.
The included studies are few and relatively small, and the review calls for larger, well-designed prospective studies and randomized dietary trials before making firm clinical recommendations. If you are considering dietary changes, discuss them with your care team so adjustments are safe and appropriate for your medical situation.
The analysis pooled three prospective cohorts (276 patients) and rated evidence certainty as very low (GRADE). Observational dietary studies are prone to measurement error and confounding; randomized dietary trials are needed to test causation. This brief is grounded in the article abstract provided by the journal.
Review the original publication for the complete reporting, methods, and context.
This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.
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