Gut Microbiome Linked to Anxiety in Dogs

Insights for the family floof.

Researchers at Memorial University have discovered a direct connection between the gut microbiome and anxiety in pet dogs.

By analyzing stool samples from companion animals, the team found that anxious dogs had higher levels of a bacterial genus called Blautia — microbes also linked to anxiety and depression in humans.

The discovery, among the first to connect gut health and emotional wellbeing in dogs, suggests that microbiome imbalances may play a key role in shaping canine behaviour. The findings could inform future therapies that use probiotics or diet adjustments to help manage anxiety in pets.

“Understanding the role of the gut microbiome in canine behaviour is critical, as this information could eventually facilitate the development of new treatments to reduce the impact of behaviour disorders on dogs and their human families.”

— Sarita Pellowe, MSc

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