Association between dietary inflammatory index and infertility of women; Results from RaNCD Cohort Study.

Nutr J

Department of Nutritional Sciences, Faculty of Nutritional Sciences and Food Technologies, Kermanshah University of Medical Sciences, Isar Sq., across from Farabi Hospital, P.O. Box 6719851552, Kermanshah, Iran.

Published: July 2023

Background: In recent decades, more and more attention has been paid to the influence of nutrition on reproductive health. Nevertheless, the imminent association between diet-related inflammation and the risk of infertility has not yet been established. The aim of the current study was to investigate the ability of the Dietary Inflammatory Index (DII) to estimate infertility incidence in women.

Methods: This cross-sectional study was conducted using data from Ravansar non-communicable diseases (RaNCD) cohort study on 4437 participants. The DII was calculated based on the reported consumption of up to 31 food parameters measured via a validated and reproducible 118-item food-frequency questionnaire (FFQ). Multiple logistic regression analysis was applied to estimate the multivariable odds ratio (OR) adjusted for potential confounding variables.

Results: Out of all participants, 411 women (9.26%) were infertile. The mean ± SD age and weight of infertile women were 43.67 ± 7.47 years and 72.86 ± 13.02 kg, respectively. Statistical analyses showed the odds ratio of infertility in the fourth quartile (pro-inflammatory diet) was 1.76 times higher than in the first quartile (anti-inflammatory diet) of DII (95% CI: 1.57-2.02).

Conclusions: The findings of this study provide compelling evidence about the association between infertility and the quality of diet in women. Therefore, interventions and programs aimed at promoting a healthy lifestyle and using healthy diets can be considered as one of the effective approaches in the prevention and treatment of infertility in women.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10362741PMC
http://dx.doi.org/10.1186/s12937-023-00865-6DOI Listing

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