04/30/2026
Your dog’s gut does more than digest food, it talks to the brain through the gut brain axis. When that system is out of balance, it can affect mood, behavior, and brain health. New research shows gut microbes influence anxiety, aggression, stress, cognitive decline, and even epilepsy through the immune system, hormones, and nerves, while also producing compounds that regulate inflammation and mood.
The good news is you can act on this. Start with a diet rich in diverse, whole-food fiber to feed beneficial bacteria and avoid ultra-processed foods that disrupt the gut. Use probiotics, prebiotics, or synbiotics to help restore balance, and support the gut during and after antibiotic use. In more serious cases, options like f***l microbiota transplant are showing early promise.
Targeted probiotics can make a real difference. In a placebo-controlled study, dogs with anxiety or aggression given Lactiplantibacillus plantarum LP815 showed noticeable improvements in just 4 weeks, including calmer behavior, better sleep, and less stress. That’s why this strain is included in PRIMITIVE PROBIOTICS™, a science-driven formula designed to help rebuild and support your dog’s microbiome.
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