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Diets filled with nutrient-dense plant foods tied to lower IBD risk
This large observational study suggests that diets high in nutrient-dense plant foods (not processed plant products) were linked to lower risk of developing IBD and to fewer IBD-related surgeries. People with IBD often ask whether diet affects disease risk and outcomes, so these results are directly relevant.
Adults at risk for IBD, people with Crohn’s disease or ulcerative colitis, dietitians and gastroenterology clinicians, and researchers studying diet and IBD.
What To Know
AOL summarizes a large observational study (Lancet Regional Health Europe) that analyzed UK Biobank and EPIC data and found that a healthy plant-based diet was associated with lower risk of developing IBD and fewer IBD-related surgeries, while an "unhealthy" plant-based diet (highly processed plant foods) was linked to higher risk.
The piece quotes external dietitian and gastroenterologist experts and notes cohort limitations (predominantly White European participants) and gaps like disease activity and quality-of-life measures. The study pooled data from two large cohorts and categorized diets as healthy plant-based, unhealthy plant-based, and healthy omnivorous.
Both a healthy plant-based diet and a healthy omnivorous diet were associated with lower IBD incidence compared with less healthy diets; highly processed plant-based foods showed the opposite association.
The article reports this as observational research—not a randomized trial—so it shows associations, not proof that changing diet will prevent IBD or eliminate the need for surgery.
If you’re thinking about changing your diet, talk with your clinical team or a dietitian who knows IBD: individual needs vary, especially during flares or if you have strictures or nutrient deficiencies. The article’s experts highlight limits such as population makeup, dietary self-reporting, and missing outcomes like relapse rates and quality of life.
This is observational cohort research that shows associations, not causation. The cohorts were mainly European and White, and the study didn’t report on disease activity, relapse rates, or quality-of-life measures—important factors for patients.
The article is a news summary of the Lancet Regional Health Europe paper and includes expert commentary; consult the original study and your care team before changing therapy or diet.
