Gut Health, Brain Health and the Science of Better Dogs

Dr. Lobos with her own dogs Finn and Journey.

What if your dog’s digestion affects more than just stool quality—what if it influences immunity, stress responses and even behavior? Host Laura Reeves is joined by Dr. Ruth Ann Lobos, Senior Veterinarian with Purina Pro Plan, for a fascinating deep dive into the latest research on the canine microbiome and the gut-brain axis. From the real meaning of prebiotics, probiotics and postbiotics to the role of MCTs in fueling the aging brain, this conversation brings cutting-edge canine nutrition science down to earth for breeders and serious dog people.

Lobos explores how modern canine nutrition is evolving beyond “just feeding a dog” and into targeted, research-backed support for digestion, cognition and quality of life.

Dr. Lobos explains that Purina doesn’t bring new diets to market simply for trendy ingredients or marketing hype—these new formulas are the result of years of research and partnerships with respected institutions like the AKC Canine Health Foundation and the renowned GI research lab at Texas A&M. Their goal is simple: support foundational health through the digestive system, since gut health affects everything from immunity to stress resilience—especially for dogs who travel, compete, or experience lifestyle changes.

One of the biggest takeaways is the clear explanation of the difference between prebiotics, probiotics and postbiotics. Dr. Lobos breaks it down in a way every dog owner can understand, using a lawn analogy: prebiotics act like fertilizer, probiotics are the grass seed, and postbiotics are like compost—no longer alive, but still beneficial.

The new Digestive Support Plus formula builds on the success of Sensitive Skin & Stomach by adding a science-supported probiotic strain that is shelf-stable and effective for dogs who need “just a little more” digestive support—without jumping straight to a veterinary therapeutic diet.

The conversation also turns to senior dogs and brain health. Dr. Lobos shares the compelling research behind medium chain triglycerides (MCTs), which help provide an alternative fuel source for the aging brain. Dogs fed MCT-supported diets have shown improved learning, awareness, and cognitive function. Even more intriguing: related research has demonstrated seizure reduction in dogs with idiopathic epilepsy using higher-MCT therapeutic diets.

This episode is a must-listen for breeders, competitors and devoted dog owners who want to understand the real science behind feeding decisions—without the buzzword nonsense.