Background
Overweight and obesity are associated with higher levels of inflammatory markers, inflammatory diseases, and lower quality of life. Recent investigations have shown that diet can modify these complications and improve quality of life.
Objective
The objective of this study was to investigate associations between Energy-Adjusted Dietary Inflammatory Index (EDII) with quality of life and serum inflammatory markers.
Methods
In the current cross-sectional study, a total of 280 females from health centers in Tehran, Iran (2018) were selected for the study using a multistage cluster random sampling method. The EDII was computed based on dietary intake, assessed by a previously validated 147-item food frequency questionnaire (FFQ). Before calculating EDII, a residual method was used to adjust energy intake. SF-36 questionnaires were used for evaluating quality of life. Concentrations of high-sensitivity C-reactive protein (hs-CRP) were determined using collected serum samples.
Results
The mean age of the study participants was 36.30 ± 8.05 years. Analyses were performed using multivariable linear regression, adjusting for age, weight, physical activity, smoking status, economic status and employment status. Linear regression analysis demonstrated that E-DII were significantly associated with certain quality of life criteria, such as physical function, mental health, and vitality (β = 5.58, 95% CI 0.72, 10.43, p = 0.024, β = 16.88, 95% CI 10.75, 23, p < 0.0001 and β = 14.29, 95% CI 9.48, 20.36, p < 0.0001, respectively). No significant associations were observed between EDII and serum level hs-CRP.
Conclusion
It was found that dietary inflammatory potential decreased some quality of life measurements and levels in overweight and obese Iranian women.