08/06/2025
Recent research on the microbiome has found a connection between changes in gut bacteria and chronic skin problems, through what’s known as the gut–skin axis. In dogs with canine atopic dermatitis (cAD), or skin allergies, studies have shown changes in both the gut and skin microbiota. This suggests that adjusting the microbiota could help manage cAD.
Probiotics are live, helpful bacteria that, when given in the right amounts, can improve health. They support the gut by strengthening its lining, helping the immune system, and producing useful compounds. Probiotics also compete with harmful bacteria for nutrients and make natural substances like short-chain fatty acids that help reduce bad bacteria in the gut.
Research has found that dogs with canine atopic dermatitis often have an imbalance in their gut microbiome, which gets worse as the skin condition becomes more severe. There is a strong link between this imbalance and lower gut bacteria diversity, as well as higher clinical scores. This suggests that gut microbiota imbalances may play a role in causing or worsening cAD.