Related Experiment Video
Updated: Jun 11, 2026

Co-culture of Living Microbiome with Microengineered Human Intestinal Villi in a Gut-on-a-Chip Microfluidic Device
Published on: August 30, 2016
Modulation of Gut Microbiota by Cacao: Insights from an In Vitro Model
Jinshil Kim1,2, Sunil Jung1, Gyungcheon Kim1
1Department of Food Science & Biotechnology, and Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea.
Cacao consumption may positively alter the gut microbiome, particularly in individuals with the Bacteroides enterotype. This suggests cacao
Area of Science:
- Microbiome research
- Nutritional science
- Gastroenterology
Background:
- Natural products like cacao influence human health via gut microbiome modulation.
- Cacao's rich polyphenol and fiber content may impact gut microbial composition and function.
- Inter-individual variations in cacao's gut microbiota effects are not well understood.
Purpose of the Study:
- To investigate the impact of cacao on gut microbiota composition and function in healthy Korean adults.
- To explore enterotype-specific responses to cacao intervention.
- To identify potential benefits of cacao for microbiome-targeted health strategies.
Main Methods:
- In vitro fecal incubation model using samples from healthy Korean adults.
- Classification of gut microbiota into enterotypes (Bacteroides and Prevotella).
- Analysis of bacterial relative abundance and functional predictions (KEGG pathways) after cacao treatment.
Main Results:
- Cacao increased beneficial bacteria (e.g., Roseburia, Faecalibacterium) in the Bacteroides enterotype.
- Cacao treatment showed potential to increase Prevotella in the Prevotella enterotype, though with limitations.
- Enhanced metabolic pathways (starch, sucrose, galactose, thiamine) were observed in the Bacteroides enterotype post-cacao treatment.
Conclusions:
- Cacao acts as a gut microbiome modulator, with effects varying by enterotype.
- The Bacteroides enterotype showed significant positive shifts in beneficial bacteria and metabolic functions.
- Cacao holds potential for microbiome-targeted dietary interventions and therapeutic applications.
Related Concept Videos
Microbiota of the Stomach and Small Intestine
Microbiota of the Large Intestine
Functions of the Gut Microbiota
Dysbiosis of the Gut Microbiota
Gut-Brain Axis
Microbiota Modulation by Antibiotics

