Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD) is rising—caused, at least in part, by unhealthy lifestyles including poor dietary choices. We examined the link between the inflammatory potential of diet as measured by the Dietary Inflammatory Index (DII®) and liver function tests [summarised by the fatty liver index (FLI)]. Of 20,643 US NHANES participants, 48.7% were men and the mean age was 47.3 years. Significant associations were apparent between increasing DII score and prevalent fatty liver. Individuals in the fourth DII quartile had nearly a six-fold higher likelihood of fatty liver [odds ratio (OR) = 5.97, 95% confidence interval: 4.44–8.02] compared with those in the first quartile. Moderation analysis indicated a significant impact of adiposity on the link between FLI and DII score (p < 0.001). This study provides further evidence of an association between the inflammatory potential of diet and fatty liver.
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Acknowledgements
Drs. Shivappa, Wirth, and Hébert were supported by grant no. R44DK103377 to CHI from the United States National Institute of Diabetes and Digestive and Kidney Diseases.
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JRH owns controlling interest in Connecting Health Innovations LLC (CHI), a company planning to license the right to his invention of the dietary inflammatory index (DII) from the University of South Carolina in order to develop computer and smart phone applications for patient counseling and dietary intervention in clinical setti ngs. NS and MDW are employees of CHI. The remaining authors declare that they have no conflict of interest.
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Mazidi, M., Shivappa, N., Wirth, M.D. et al. Diet with greater inflammatory potential is associated with higher prevalence of fatty liver among US adults. Eur J Clin Nutr 73, 1653–1656 (2019). https://doi.org/10.1038/s41430-018-0364-y
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DOI: https://doi.org/10.1038/s41430-018-0364-y