The dietary inflammatory index is positively associated with insulin resistance in underweight and healthy weight adults

Author:

Mi Zhendong1,Wang Xuhan2,Ma Liying1,Liu Honglin1,Zhang Yidan3,Ding Ziji1,Wang Ling2,Sun Mengzi2,Li Bo2ORCID

Affiliation:

1. Department of Preventive Medicine, School of Public Health, Jilin University, Changchun 130021, P.R. China

2. Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun 130021, P.R. China

3. Department of Radiation Medicine, School of Public Health, Jilin University, Changchun 130021, P.R. China

Abstract

The aim of this study was to explore the relationship between dietary inflammatory index (DII) and insulin resistance (IR) in underweight and healthy weight adults. This cross-sectional study involved 3205 participants from the National Health and Nutrition Examination Survey (NHANES) from 2005 to 2018. All dietary data used to calculate the DII were obtained based on the average of two 24-h dietary recall interviews. Participants were divided into an anti-inflammatory diet group and a pro-inflammatory diet group based on DII < 0 and DII ≥ 0, respectively. Fasting blood glucose and fasting insulin data used to calculate IR index (HOMA-IR) were from laboratory data in the NHANES database. According to the linear regression analysis results of DII and HOMA-IR, we found that there was a positive relationship between DII and IR. A positive association between DII and HOMA-IR was seen in the following groups after stratification: by age in 20–39-year olds, by sex in males, by race in Non-Hispanic Whites, by family history of diabetes in those without a family history of diabetes, by education level in those with high school education, by smoking status in current smokers and non-smokers, by hypertension in those with hypertension, by BMI in those with a BMI of 18.5–24.99, by hypertriglyceridemia (HTG) in those without HTG, by poverty impact ratio (PIR) in those with PIR ≤ 1.3 and >1.3, and by physical activity in those with moderate recreational activities. In conclusion, in underweight and healthy weight adults, DII was positively correlated with the risk of IR.

Publisher

Canadian Science Publishing

Subject

Physiology (medical),Nutrition and Dietetics,Physiology,General Medicine,Endocrinology, Diabetes and Metabolism

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