08/14/2026
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🧬 WHAT DOGS EAT MAY CHANGE HOW THEIR SKIN PROTECTS ITSELF... AT THE GENETIC LEVEL.
A peer-reviewed study published in Frontiers in Veterinary Science, a well-respected international veterinary journal, suggests that a dog’s diet can influence much more than the appearance of their coat; it can also affect how their skin functions from the inside out.
Researchers at DogRisk Research Group compared dogs eating a minimally processed raw diet with dogs eating an ultra-processed kibble and found that the raw-fed dogs showed greater activity of genes linked to healthy skin, natural immune defenses, and the body’s own antioxidant system, including glutathione. They also found that dogs with allergies had changes in hundreds of genes involved in skin barrier function, inflammation, and skin cell repair, highlighting how important a healthy skin barrier is for protecting against allergens and environmental irritants.
One possible reason is the food matrix—the natural structure of whole foods, where nutrients, fats, proteins, fiber, and thousands of naturally occurring compounds work together in ways that isolated nutrients or highly processed foods may not fully replicate. While this study wasn’t designed to determine why these gene changes occurred, the food matrix is one of several factors researchers believe deserves further investigation.
This study adds to a growing body of research suggesting that nutrition can influence health all the way down to gene activity. That’s one reason Dr. Karen Becker recommends feeding a balanced, fresh, minimally processed diet whenever possible. Whole foods provide nutrients in their natural form and may help support healthy skin, immune function, and overall well-being as part of a healthy lifestyle.
And remember, it doesn’t have to be all or nothing. If you’re currently feeding kibble, simply starting with a teaspoon of fresh, whole food added to the bowl is a great first step. Small changes can be a simple way to start adding more fresh food to your dog’s diet.
