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Updated: Jun 5, 2025
07:15
An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
Published on: July 31, 2019
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The gut microbiome and eating behavior outcomes: A systematic review
Bernadette Chimera1, Rachel Hoobler2,3, Mélanie Deschasaux-Tanguy4
1Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France.
Summary
The gut microbiome influences eating behaviors, appetite, and weight. Prebiotics show consistent benefits, while probiotics have mixed results, indicating a need for more research.
Area of Science:
- Microbiome-Gut-Brain Axis
- Nutritional Neuroscience
- Behavioral Science
Background:
- Dysfunctional eating behaviors contribute to malnutrition.
- The gut microbiome, via the microbiota-gut-brain axis, is a modifiable factor influencing eating behavior.
Purpose of the Study:
- To systematically review the influence of the gut microbiome on human eating behavior.
- To examine modulators of eating behavior including appetite, satiety, energy intake, and weight changes.
Main Methods:
- Searched PubMed, Embase, and Web of Science databases until July 2022.
- Included 37 studies with interventions such as prebiotics, probiotics, and synbiotics.
- Primary outcomes were eating behaviors and their modulators.
Main Results:
- The gut microbiome is linked to eating behaviors, appetite, energy intake, and weight in 28 studies.
- Prebiotics consistently reduced appetite and regulated appetite hormones.
- Probiotic and synbiotic effects on appetite and weight were inconsistent, with most studies having a high risk of bias.
Conclusions:
- The gut microbiome is associated with human eating behavior, but causal relationships require further substantiation.
- Specific microbiome taxa links to eating behavior are emerging.
- Future research needs standardized methods and prospective designs to confirm findings.
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