Inflammatory potential of diet is associated with cognitive function in an older adult Korean population

Dayeon Shin, Simona C. Kwon, Mi Hye Kim, Kyung Won Lee, Soe Yeon Choi, Nitin Shivappa, James R. Hébert, Hae Kyung Chung

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Objective: To examine the association between the inflammatory potential of diet and the quality of cognitive function in an older adult Korean population. Methods: A total of 239 participants (88 men and 151 women) ages ≥65 y were selected from various health centers in Korea. To assess the inflammatory potential of diet, Energy-adjusted Dietary Inflammatory Index (E-DII) scores were computed based on a single 24-h recall. Cognitive function was assessed using the Korean Mini-Mental State Examination. Multiple linear and logistic regression models were fit to estimate the association between E-DII scores and the degree of cognitive function. Results: E-DII scores were significantly inversely associated with Korean Mini-Mental State Examination score in both unadjusted and adjusted models, after controlling for sex, age, body mass index, sleep hours, supplement use, education level, self-reported health conditions, history of dementia, and physical activity (β = −1.33, 95% confidence interval [CI] = −1.95, −0.71, P < 0.0001; β = −0.58, 95% CI = −1.11, −0.06, P = 0.03, respectively). Participants in the highest E-DII tertile had increased risk for mild or moderate cognitive impairment compared with those in the lowest E-DII tertile (adjusted odds ratio 6.32, 95% CI 1.18–33.78; P for trend = 0.0031). Conclusions: Higher E-DII scores were associated with increased risk of cognitive impairment, suggesting that consuming a proinflammatory diet is associated with increased risk for cognitive impairment in the older Korean adults.

Original languageEnglish (US)
Pages (from-to)56-62
Number of pages7
StatePublished - Nov 1 2018


  • Cognitive function
  • Energy-adjusted dietary inflammatory index (E-DII)
  • Inflammation
  • K-MMSE
  • Older Koreans

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Nutrition and Dietetics


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