Research

Micronutrients & recovery

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.

Excessive fructose, especially from syrup, damages your gut lining by reducing beneficial bacteria and tight junction proteins, leading to 'leaky gut' and inflammation. While moderate natural fructose from fruit is likely safe, avoid excessive fructose syrup to protect your gut and weight.

GoodSupportsHIGH confidence
Excessive consumption of fructose syrup leads to disturbance to the symbiosis relationship between the host and the gut microbiota... Fructose can also provoke pro-colitic effects by altering the metabolic functions and composition of enteric bacteria... Fructose-induced pro-inflammatory microbiota increases the production of endotoxins like lipopolysaccharides (LPS)... This inflammation disrupts key TJ proteins, such as ZO-1, Occludin, and Claudin-1, in the duodenum, increasing the permeability of the intestinal barrier and inducing a 'leaky gut.'
Sara K. Al-Marzooqi et al. · Obesity Reviews · 2024

Why this rating

Supported by studies in piglets, mice, and cell lines showing consistent barrier disruption.

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

narrative_reviewCited 22×
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