In May 2018 researchers from Iran published their review of the medical scientific literature to assess the association between a dietary inflammatory index score and risk of cardiovascular disease, metabolic syndrome and mortality. A total of 17 studies were included in their review. Results showed that a lower dietary inflammatory score was associated with a reduced risk of cardiovascular disease, and death due to cardiovascular diseases or cancer. However, no significant association was found between the dietary inflammatory score and the risk for metabolic syndrome.
Namazi N et al. Dietary Inflammatory Index and its Association with the Risk of Cardiovascular Diseases, Metabolic Syndrome, and Mortality: A Systematic Review and Meta-Analysis. Horm Metab Res. 2018 May;50(5):345-358