Gut Health · 11 min read✓ Our Veterinary Editorial Board — August 22, 2026Key takeawaysThe canine gut microbiome changes with age: community composition shifts, and markers of intestinal health alter in measurable ways (PMID: 37680388).Age-related reductions in fermentative capacity and barrier integrity may contribute to the digestive fragility often seen in senior dogs.Nutrient utilization itself … Continue reading Senior Dog Gut Health: Age-Related Microbiome Changes