
09/10/2025
🐾 New Insight into Diet & the Canine Gut 🐾
We often hear that “you are what you eat”, and for dogs, that may hold true down to the microbial level.
A recent home-based study of 103 dogs compared fresh / gently cooked diets with processed kibble diets, examining their gut microbiomes via faecal DNA sequencing.
Key take-homes:
- Dogs on fresh diets had lower microbial diversity/richness compared to those on kibble (but see caveats)
- However, certain pathogenic/opportunistic bacteria (e.g. Sutterella) were more abundant in dogs on kibble diets.
- Fresh-fed dogs showed stronger presence of functional pathways linked to protein degradation and butyrate synthesis (from amino acids), possibly reflecting better utilisation of high-quality proteins.
- Owner-reported health trends: fewer skin, appetite or gastrointestinal complaints in the fresh diet group versus kibble.
⚠️ Important caveats:
- This is a preprint, not yet peer reviewed.
- It’s a cross-sectional snapshot, not a longitudinal trial; it captures associations, not causation.
- The “kibble” diets in the study weren’t standardised across brands, which may introduce variability.
🔍 Always wise to check with your vet (or a veterinary nutritionist) before making major dietary changes.