Research into the gut-brain axis in dogs is revealing connections between intestinal microbiome health and behavioral outcomes including anxiety, stress reactivity, and aggression. This emerging field offers new avenues for welfare improvement.
The connection between gut health and behavioral welfare in dogs represents an exciting frontier that could help explain why some dogs struggle with anxiety despite good environments and training. If microbiome-behavior relationships are confirmed through larger studies, this would open new welfare interventions including dietary modification, probiotic therapy, and early life microbiome management for at-risk dogs. For now, the practical takeaway is that supporting good digestive health through appropriate diet may have benefits that extend beyond physical health to emotional wellbeing.