 This study found that cats fed a chicken-based extruded diet had different gut microbes than those fed a raw 1- to 3-day-old chick diet. The former had higher proportions of certain bacteria, such as unidentified lagnospiracea, peptococcus, and pseudodobutia brivria, while the latter had more fecalibacterium and succinivibrio. This suggests that the extruded diet may have altered the composition of the gut microbiome, which could potentially affect the health of the cat. More research is needed to understand how these changes might influence the overall health of the cat. This article was authored by K. R. Kerr, S. E. Dowd, and K. S. Swanson.