A diet-related inflammatory index was associated with cancer risk in a dose-dependent manner across 44 studies.
People with the highest diet-related inflammatory score had a 58% increased cancer risk compared to those with the lowest scores. Cancer risk increased by 8.3% when the diet-inflammatory score increased by 1 from a linear dose-response analysis.
The diet-related inflammatory index has previously been shown to be highest with a Western-type diet, which is high in sugar intake, fried foods, high-fat dairy products, and refined grains. It has been shown to be associated with higher levels of inflammatory biomarkers, such as C-reactive protein and IL-6.
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Diet-related inflammatory index study: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777480/