{Research Brief} Nonlinear Dose–Response Relationship Between Dietary Inflammatory Index and Risk of Depression: A Systematic Review and Meta-Analysis

{Research Brief} Nonlinear Dose–Response Relationship Between Dietary Inflammatory Index and Risk of Depression: A Systematic Review and Meta-Analysis

From Nourished Brain Podcast by Sarah Thomsen Ferreira

November 24, 2025 · 10 min

About this episode

This episode discusses a systematic review and meta-analysis on the relationship between dietary inflammatory index and depression risk.

In this episode of The Nourished Brain , I break down a new systematic review and meta-analysis titled “ Nonlinear Dose–Response Relationship Between Dietary Inflammatory Index and Risk of Depression: A Systematic Review and Meta-Analysis” I explore: • Why chronic low-grade inflammation is now considered a key driver of mental health conditions • The meta-analysis findings showing that higher DII scores are associated with increased depressive symptoms • How anti-inflammatory patterns like the Mediterranean diet may support better brain health • Key limitations of the review, including reliance on observational data and self-reported diet measures Tune in to learn how your daily food choices may influence systemic inflammation—and ultimately, your mood and mental well-being. --------- Yu L, Bian L, Ren L, Wei W, Zhang H, Miao M. Nonlinear dose-response relationship between dietary inflammatory index and risk of depression: a systematic review and meta-analysis. Front Nutr. 2025 Sep 12;12:1645789. --------- 💡 Have a question you’d like me to cover on the podcast? Or interested in joining as a guest? Looking for a speaker for your event, workshop, or conference? Send me a message…

Topics covered

  • dietary inflammatory index
  • depression
  • mental health
  • systematic review
  • meta-analysis
  • Mediterranean diet

Keywords

  • chronic low-grade inflammation
  • depressive symptoms
  • anti-inflammatory patterns
  • self-reported diet measures

Mentioned in this episode

Products: Mediterranean diet

Books & works: The Nourished Brain

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