Trial results for a study investigating a dietary green tea confection for resolving gut permeability-induced metabolic endotoxemia in obese adults were posted on ClinicalTrials.gov on 2025-06-13. The study observed lower mean endotoxin levels in obese participants receiving the green tea confection, with a mean of 12.97 EU/mL, compared to 17.65 EU/mL in the obese placebo group.
Background
Obesity is a complex condition often associated with metabolic endotoxemia and inflammation. Metabolic endotoxemia, linked to gut permeability, is a focus of research due to its potential role in obesity-related complications. This study aimed to assess gastrointestinal-level improvements by which green tea might limit metabolic endotoxemia in obese adults.
Trial design
This study, titled 'Dietary Green Tea Confection For Resolving Gut Permeability-Induced Metabolic Endotoxemia In Obese Adults', was a parallel design randomized controlled trial with an overall status of COMPLETED. It enrolled 40 participants and focused on conditions including Obesity, Endotoxemia, and Inflammation. The trial involved two phases, with Phase 2 consisting of a parallel design randomized controlled study where lean and obese persons consumed either a placebo or a green tea extract (GTE) confection. Primary outcomes were not detailed in the provided results.
Key results
The study reported several key measurements for endotoxin levels:
- Endotoxin levels in Obese participants:
- Obese - GTE group: Mean of 12.97 EU/mL (Standard Deviation 6.44) and 12.38 EU/mL (Standard Deviation 7.53).
- Obese - Placebo group: Mean of 17.65 EU/mL (Standard Deviation 12.58), 15.62 EU/mL (Standard Deviation 5.32), and 15.45 EU/mL (Standard Deviation 6.94).
- General Obese group: Mean of 16.46 EU/mL (Standard Deviation 4.91).
- Endotoxin levels in Lean participants:
- Lean - GTE group: Mean of 14.44 EU/mL (Standard Deviation 4.46) and 13.59 EU/mL (Standard Deviation 7.38).
- Lean - Placebo group: Mean of 12.25 EU/mL (Standard Deviation 6.05), 13.00 EU/mL (Standard Deviation 5.44), and 11.33 EU/mL (Standard Deviation 5.56).
- General Lean group: Mean of 12.33 EU/mL (Standard Deviation 4.55).
What this means
The observed lower mean endotoxin levels in obese participants who consumed the green tea confection, compared to those receiving placebo, suggest a potential benefit of green tea in modulating metabolic endotoxemia. While the study provides numerical data on endotoxin levels across different groups, the absence of statistical analyses prevents definitive conclusions regarding the significance of these differences. However, the consistent trend of lower endotoxin in the obese GTE group warrants further investigation into green tea's role in managing gut permeability and related metabolic issues in obesity.
Source
The information for these trial results was obtained from ClinicalTrials.gov, a public database of clinical studies. The results for the study NCT03413735, titled 'Dietary Green Tea Confection For Resolving Gut Permeability-Induced Metabolic Endotoxemia In Obese Adults', were posted on 2025-06-13 on clinicaltrials.gov.