Micronutrients & recovery
High-fiber diets protect intestinal barrier integrity by upregulating tight junction proteins (ZO-1, occludin, claudin-3) via short-chain fatty acids (specifically butyrate), thereby reducing the risk of obesity and metabolic disorders.
Eating a diet rich in fiber helps your gut barrier stay strong by producing butyrate, which repairs the seals between gut cells. This reduces inflammation and lowers obesity risk. Start with moderate fiber to avoid bloating, and focus on fruits, vegetables, and beans.
Butyrate, an SCFA and a byproduct of fiber has a protective role in the intestinal barrier via the activation of the Akt pathway that upregulates TJ protein claudin-3 expression... diabetic mice treated with butyrate have shown upregulation of TJ protein ZO-1 and occludin. It also modifies claudin-2 expression in vitro, thus suppressing cytokine-induced barrier dysfunction.
Why this rating
Supported by multiple studies in mice and cell lines showing consistent upregulation of TJs.
Source
Deciphering the complex interplay of obesity, epithelial barrier dysfunction, and tight junction remodeling: Unraveling potential therapeutic avenues
Sara K. Al-Marzooqi et al. · Obesity Reviews · 2024
DOI 10.1111/obr.13766
More from this paper
- High-fat diets (HFD) induce obesity and metabolic dysfunction by altering gut microbiota composition and downregulating tight junction proteins (claudin-1, claudin-2, claudin-3, ZO-1, occludin), leading to increased intestinal permeability ('leaky gut') and systemic inflammation.Good
- High-protein diets promote long-term weight loss and prevent weight regain by increasing satiety, enhancing metabolic rate, and altering gut microbiota to favor beneficial species (Akkermansia, Bifidobacterium), while also upregulating tight junction proteins like occludin and ZO-1.Good
- Excessive fructose intake disrupts gut microbiota, reduces beneficial butyrate-producing bacteria, and downregulates tight junction proteins (ZO-1, Claudin-1, occludin), leading to increased intestinal permeability, endotoxemia, and obesity.Good
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