Research

Hormonal

Dietary flavonoids reduce intestinal inflammation and improve barrier integrity in obesity-associated models by suppressing the TLR4/NF-κB signaling pathway and down-regulating pro-inflammatory enzymes like COX-2 and iNOS.

To leverage flavonoids for gut health and inflammation, prioritize foods rich in specific flavonoids (like citrus for naringenin, tea for catechins, or red wine for anthocyanidins) because they interact directly with gut bacteria and intestinal cells. The benefit comes from local gut effects and microbiota modulation rather than high systemic blood levels.

ModerateSupportsMEDIUM confidence
Flavonoid-mediated modulation of the inflammatory response has been extensively studied... flavonoids reduce intestinal inflammatory processes driven by NF-κB activation by down-regulating the TLR-4/NF-κB pathway in intestinal cell models.
Katherine Gil‐Cardoso et al. · Nutrition Research Reviews · 2016

Why this rating

The paper is a review of in vivo and in vitro models; it cites multiple studies but lacks direct human clinical trial data for specific flavonoid dosing.

Source

Effects of flavonoids on intestinal inflammation, barrier integrity and changes in gut microbiota during diet-induced obesity

Katherine Gil‐Cardoso et al. · Nutrition Research Reviews · 2016

DOI 10.1017/s0954422416000159

narrative_reviewCited 231×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →