Summary
This narrative review proposes type 2 taste receptors as a mechanistic link between bitter taste perception, dietary choice, gut microbiota composition, and obesity risk. The authors note that whilst diet is a known modifiable factor in obesity development, it only partially explains disease risk; they propose that T2R-mediated signalling in the large intestine—where both T2R concentration and bacterial colonisation are highest—may influence microbial energy harvesting capacity and thus weight regulation. The review positions taste receptor biology as a potential explanatory mechanism for the observed association between dysbiosis and obesity.
Regional applicability
The paper addresses fundamental human biology and is not geographically specific. Findings on T2R function and microbiota-mediated energy harvest apply broadly to United Kingdom populations; however, the review does not address UK-specific dietary or microbial epidemiology.
Key measures
Tissue distribution and expression of T2Rs; associations between T2Rs, dietary intake, microbiota composition, and obesity phenotypes
Outcomes reported
The review synthesises evidence on type 2 taste receptors (T2Rs) expressed throughout the gastrointestinal tract and their potential role in modulating appetite, diet composition, and weight regulation through interactions with the gut microbiome.
Topic tags
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