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Updated: Oct 8, 2025

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
Published on: July 31, 2019
Microbiota and body weight control: Weight watchers within?
Serena Boscaini1, Sarah-Jane Leigh1, Aonghus Lavelle2
1APC Microbiome Ireland, University College Cork, Cork, Ireland.
Gut microbiota alterations are linked to obesity and cachexia. While interventions show promise, manipulating gut microbiota alone is insufficient for human body weight control, necessitating combined strategies.
Area of Science:
- Microbiome research
- Metabolic health
- Nutritional science
Background:
- Body weight management remains a clinical challenge.
- Obesity and cachexia are linked to gut microbiota dysregulation.
- Gut microbiota influences energy extraction and nutrient metabolism.
Purpose of the Study:
- Review the gut microbiota's role in obesity and cachexia.
- Assess interventions (diet, surgery, probiotics, etc.) for body weight and microbiota changes.
- Explore the link between body weight control and gut microbiota.
Main Methods:
- Literature review of physiological and metabolic alterations.
- Analysis of evidence for various body weight management strategies.
- Synthesis of findings on gut microbiota composition and body weight.
Main Results:
- Significant associations exist between body weight and gut microbiota.
- Limited success in translating microbiota interventions to human body weight control.
- Gut microbiota manipulation alone is insufficient for significant body weight alteration.
Conclusions:
- Gut microbiota plays a role in body weight regulation.
- Combined strategies are needed to enhance lifestyle interventions for body weight control.
- Further research is required to optimize microbiota-targeted therapies.
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