Pooled analysis covering 1.2 million person-years. The association persisted after adjustment for red meat intake, BMI and physical activity, and was strongest for cereal rather than fruit fiber.
Fiber intake and colorectal risk: what the pooled data says
Each additional 10 g/day of whole-grain fiber tracked with lower adenoma incidence.
Finding
Across 14 prospective cohorts, each 10 g/day of whole-grain fiber was associated with a 7% lower incidence of colorectal adenoma.
References
- Lancet Public Health. 2026;11(4):e210–e219.
- Orlich, M.J. et al. Am J Clin Nutr. 2024;108(4):870–881.