The association between dietary inflammatory potential and risk of total and site-specific colorectal cancer: a systematic review and meta-analysis of observational studies

< 0·01), proximal colon (ES: 1·28; 95 % CI 1·17, 1·40; I² = 29·1 %), distal (ES: 1·50; 95 % CI 1·30, 1·74; I² = 63·5 %) and rectal (ES: 1·46; 95 % CI 1·23, 1·74; I² = 80 %). Stratified analysis by type of dietary indices noted that greater adherence to the DII, E-DII and EDIP were related to significant increase in the risk of overall CRC and site-specific colon cancers. Our results highlighted the proposed role of inflammatory potential of diet as important risk factor for CRC. Adherence to an anti-inflammatory dietary pattern should be recommended to reduce incidence of CRC, globally.