The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators

BackgroundDietary inflammation and oxidative stress have been linked to reproductive health, and weight gain has also been found to play an important role in female reproductive function specifically. In this study we explore the effects of dietary inflammatory index (DII) and dietary oxidative bala...

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Main Authors: Mingyue Liang, Xuanhui Wu, Ying Xie, Ying Wang, Bin Luo, Hongmei Xue, Zengning Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Endocrinology
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Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2025.1517318/full
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author Mingyue Liang
Mingyue Liang
Mingyue Liang
Xuanhui Wu
Xuanhui Wu
Xuanhui Wu
Ying Xie
Ying Xie
Ying Wang
Ying Wang
Ying Wang
Bin Luo
Bin Luo
Hongmei Xue
Hongmei Xue
Hongmei Xue
Zengning Li
Zengning Li
Zengning Li
author_facet Mingyue Liang
Mingyue Liang
Mingyue Liang
Xuanhui Wu
Xuanhui Wu
Xuanhui Wu
Ying Xie
Ying Xie
Ying Wang
Ying Wang
Ying Wang
Bin Luo
Bin Luo
Hongmei Xue
Hongmei Xue
Hongmei Xue
Zengning Li
Zengning Li
Zengning Li
author_sort Mingyue Liang
collection DOAJ
description BackgroundDietary inflammation and oxidative stress have been linked to reproductive health, and weight gain has also been found to play an important role in female reproductive function specifically. In this study we explore the effects of dietary inflammatory index (DII) and dietary oxidative balance score (DOBS) on infertility and sex hormones, and clarify the mediating role of obesity on these effects.MethodsA total of 1,774 subjects from the 2013-2016 National Health and Nutrition Examination Survey (NHANES) were selected. The DII and DOBS were determined by aggregating data on 26 and 17 dietary components obtained by dietary recall, respectively. Infertility (yes or no, self-reported in questionnaire) and serum gonadal hormones including total testosterone (TT), estradiol (E2), and sex hormone-binding globulin (SHBG) were considered as main outcome variables. Multivariate logistic regression and restricted cubic splines (RCS) were applied for further analysis, and mediation models were constructed to figure out the mediating role of obesity indicators.ResultsThe prevalence of infertility among American women of childbearing age was 12.66%. There were significant linear relationships between the DII and DOBS, and infertility and serum SHBG (p for overall < 0.05). Consuming foods with higher DII was significantly associated with higher risk of infertility (OR: 1.86; 95% CI: 1.20-2.89) and lower levels of SHBG (β: -9.98; 95% CI: -19.45–0.51). Compared to the lowest DOBS category, the adjusted beta estimates for SHBG and E2 were 12.03 (95% CI: 2.01-22.04) and 134.58 (95% CI: 3.46-266.24) in the highest DOBS group. However, anti-inflammatory and anti-oxidative diets reduced the risk of infertility by 51% and increased SHBG levels by 14.54 nmol/L. Interestingly, obesity indicators mediated the associations of dietary inflammation and oxidative stress potential with infertility and SHBG.ConclusionsDietary inflammation and oxidative stress are strongly associated with the risk of infertility and serum SHBG levels, indicating that anti-inflammatory and anti-oxidative diets may mitigate fertility disorders that result from obesity.
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spelling doaj-art-13f0806092ec464ea2bf7e37b9063dba2025-08-20T03:07:54ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922025-05-011610.3389/fendo.2025.15173181517318The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicatorsMingyue Liang0Mingyue Liang1Mingyue Liang2Xuanhui Wu3Xuanhui Wu4Xuanhui Wu5Ying Xie6Ying Xie7Ying Wang8Ying Wang9Ying Wang10Bin Luo11Bin Luo12Hongmei Xue13Hongmei Xue14Hongmei Xue15Zengning Li16Zengning Li17Zengning Li18School of Public Health, Hebei Medical University, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaSchool of Public Health, Hebei Medical University, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaSchool of Public Health, Hebei Medical University, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaSchool of Public Health, Hebei University, Baoding, ChinaSchool of Public Health, Hebei Medical University, Shijiazhuang, ChinaDepartment of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, ChinaHebei Key Laboratory of Nutrition and Health, Shijiazhuang, ChinaBackgroundDietary inflammation and oxidative stress have been linked to reproductive health, and weight gain has also been found to play an important role in female reproductive function specifically. In this study we explore the effects of dietary inflammatory index (DII) and dietary oxidative balance score (DOBS) on infertility and sex hormones, and clarify the mediating role of obesity on these effects.MethodsA total of 1,774 subjects from the 2013-2016 National Health and Nutrition Examination Survey (NHANES) were selected. The DII and DOBS were determined by aggregating data on 26 and 17 dietary components obtained by dietary recall, respectively. Infertility (yes or no, self-reported in questionnaire) and serum gonadal hormones including total testosterone (TT), estradiol (E2), and sex hormone-binding globulin (SHBG) were considered as main outcome variables. Multivariate logistic regression and restricted cubic splines (RCS) were applied for further analysis, and mediation models were constructed to figure out the mediating role of obesity indicators.ResultsThe prevalence of infertility among American women of childbearing age was 12.66%. There were significant linear relationships between the DII and DOBS, and infertility and serum SHBG (p for overall < 0.05). Consuming foods with higher DII was significantly associated with higher risk of infertility (OR: 1.86; 95% CI: 1.20-2.89) and lower levels of SHBG (β: -9.98; 95% CI: -19.45–0.51). Compared to the lowest DOBS category, the adjusted beta estimates for SHBG and E2 were 12.03 (95% CI: 2.01-22.04) and 134.58 (95% CI: 3.46-266.24) in the highest DOBS group. However, anti-inflammatory and anti-oxidative diets reduced the risk of infertility by 51% and increased SHBG levels by 14.54 nmol/L. Interestingly, obesity indicators mediated the associations of dietary inflammation and oxidative stress potential with infertility and SHBG.ConclusionsDietary inflammation and oxidative stress are strongly associated with the risk of infertility and serum SHBG levels, indicating that anti-inflammatory and anti-oxidative diets may mitigate fertility disorders that result from obesity.https://www.frontiersin.org/articles/10.3389/fendo.2025.1517318/fulldietary inflammationinfertilityoxidative stressnational health and nutrition examination survey (NHANES)mediation analysis
spellingShingle Mingyue Liang
Mingyue Liang
Mingyue Liang
Xuanhui Wu
Xuanhui Wu
Xuanhui Wu
Ying Xie
Ying Xie
Ying Wang
Ying Wang
Ying Wang
Bin Luo
Bin Luo
Hongmei Xue
Hongmei Xue
Hongmei Xue
Zengning Li
Zengning Li
Zengning Li
The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
Frontiers in Endocrinology
dietary inflammation
infertility
oxidative stress
national health and nutrition examination survey (NHANES)
mediation analysis
title The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
title_full The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
title_fullStr The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
title_full_unstemmed The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
title_short The relationship between dietary inflammation potential, dietary oxidative balance score, and female reproductive function: a mediation analysis of obesity indicators
title_sort relationship between dietary inflammation potential dietary oxidative balance score and female reproductive function a mediation analysis of obesity indicators
topic dietary inflammation
infertility
oxidative stress
national health and nutrition examination survey (NHANES)
mediation analysis
url https://www.frontiersin.org/articles/10.3389/fendo.2025.1517318/full
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