Review explores how social conditions may connect with gut–brain biology in obesity
The authors describe possible pathways linking adversity, eating behavior, and obesity, but the abstract does not quantify those relationships or demonstrate a treatment benefit.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
This review examines how social and environmental conditions may interact with the brain, gut, and microbiome in obesity. It describes appetite-related signals, inflammation, and stress pathways as possible links to eating behavior. The abstract supports a framework for understanding these relationships, but does not establish their causal strength or show that targeting them improves outcomes.
The abstract does not describe the included study designs, participant characteristics, study count, or quantitative results. It therefore cannot establish how consistently the proposed pathways were observed or how strongly each link is supported.
The social conditions considered
The review discusses economic security, education, access to care, social support, discrimination, and early adversity. These are considered alongside biological processes, broadening the question beyond eating behavior viewed in isolation from a person's circumstances.
The proposed biological connections
The authors describe changes involving gut microbes, hormonal stress signaling, and brain reward networks that may favor calorie-dense foods. These are proposed explanatory connections; the abstract does not distinguish which were demonstrated experimentally and which reflect associations.
The original publication
Biopsychosocial and Environmental Factors That Impact Brain-Gut-Microbiome Interactions in Obesity.
Sood R, Kilpatrick LA, Keefer LA et al.
Clin Gastroenterol Hepatol · 2026
- PubMed ID
- 40914285
- Record checked
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