Gut health refers to the balance and proper function of the digestive system particularly the intestines including digestion nutrient absorption and the gut microbiome.
In dogs and cats more than 70 percent of immune cells are located in the gastrointestinal tract making gut health the first line of immune defense.
A healthy gut barrier prevents harmful substances from entering the bloodstream while beneficial bacteria support immune regulation. When gut balance is disrupted immunity weakens and inflammation increases.
The Role of the Gut Microbiome
The gut microbiome consists of trillions of microorganisms that aid digestion vitamin production and immune modulation. Diversity and balance are essential for long term health.

Irregular stools
Digestive upset
Skin irritation
Frequent illness
Easily digestible proteins balanced fiber prebiotics and probiotics support a healthy gut environment. Diet plays a crucial role in shaping immune strength.
A healthy gut builds a strong immune system. Supporting gut health is one of the most effective ways to improve overall pet well being.
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References
VCA Animal Hospitals
Gut Health and the Immune System in Pets
PetMD
Why Gut Health Matters for Dogs and Cats
American Kennel Club
Digestive Health and Immunity in Dogs
National Center for Biotechnology Information
Gut Microbiota and Immune Function