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, were enriched by the cafeteria diet. Critically, alpha diversity measures and the gut microbiota composition did not differ between obese-prone and obese-resistant rats in either diet group. Our findings suggest that while the microbiota is substantially altered by cafeteria diet intake, these changes appear unrelated to individual susceptibility to weight gain, highlighting the role of additional host factors in modulating diet-induced obesity.
Srinivasan et al. (Sun,) studied this question.