Association between Dietary Inflammatory Index with Bioelectrical Impedance Parameters and Characteristics Health in Overweight/Obese Women: A Cross‑Sectional Study

Diet quality has been suggested as an important factor in disorders such as obesity and mental health as it controls inflammatory biomarkers. This study aimed to investigate the association between dietary inflammatory index (DII) with bioelectrical impedance parameters and characteristics of health in overweight\obese women.

In this cross‑sectional study, we calculated DII for 301 participants from their food frequency questionnaire (FFQ). Body composition was assessed through a multifrequency bioelectrical impedance analyzer (BIA). Depression, anxiety and stress scale‑21 (DASS‑21) was used to assess the level of characteristics of health.

The mean percentage ± SD of fat‑free mass (FFM) and fat mass (FM) was 46.81 ± 5.65 and 34.05 ± 8.69, respectively. In this study, 49% (95% CI: 40.8–57.2) of participants had positive DII. Linear regression analysis revealed that FFM (P = 0.004) and total body water (TBW) (P = 0.004) were significantly associated with DII.

A significant relationship was found between DII with FFM and TBW in overweight\obese women, supporting the hypothesis that an anti‑inflammatory diet is associated with elevated FFM and TBW.