Effects of Gallotannins on the Gut Microbiome and How it Affects Inflammatory Markers Among Obese Individuals.
Exploring Tannin-Probiotic Interactions on Microbial Composition and Inflammatory Outcomes in Obesity
Prairie View A&M University
20 participants
Apr 14, 2026
INTERVENTIONAL
Conditions
Summary
The goal of this clinical trial is to understand how gallotannin-rich (GT-rich) mangoes can reduce the inflammatory markers in obese individuals in vitro. The study will also seek to explore how gallotannins are metabolized in the gut microbiome. The main questions the research aims to answer are: * What is the impact of GT extract from mango and Lactiplantibacillus pentosus supplementation on inflammatory biomarkers in obese individuals? * Does the combination of GTs and L. pentosus exhibit synergistic effects in modulating specific microbial taxa associated with obesity and inflammation compared to either intervention alone? * Does genetic variation among individuals with obesity account for the ability to metabolize gallotannins? Researchers will compare the effects of GT extract from mango juice, a combination of GT-rich extract, and L. pentosus probiotic supplement on samples (stool) provided by obese individuals, to samples provided by a lean control group to see if gallotannins and gallotannins + probiotic supplementation reduce inflammation in obesity. Participants will * Be grouped into 4 treatment groups 1. Mango juice only 2. Mango + L. pentosus 3. L. pentosus only 4. Control (lean individuals) * Visit sample collection site one time during the study (week 1)
Eligibility
Exclusion Criteria2
- Participants with history of acute cardiac events, stroke, or cancer, recurrent hospitalizations, drug treatment of listed conditions within 6 months before study begin, abuse of alcohol/substance, on medications against T2DM or related diseases, smoking > 1 pack/week, seizures (all within the last 6 months) will be excluded from the study.
- Participants with history of liver, intestinal or renal dysfunction, pregnancy or lactation, allergy against GTs, mangos, history of hepatitis B, C, or HIV, use of systemic antibiotics within 1 months of screening, participation in other interventional research study, intake of herbal dietary supplements.
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Interventions
This mango is high in polyphenols, specifically hydrolysable tannins, which are easily broken down by microbes in the colon. The metabolites formed can improve the gut microbiome population and also improve immune response.
Lactiplantibacillus pentosus is a probiotic bacterium that can benefit gut health and may have additional benefits like reducing inflammation
This intervention has no treatment added so as to serve as a control for the other interventions.
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT07505212