Why dogs struggle with skin problems and how nutrition helps

New research points to the role of insect meal in supporting dogs’ skin barrier and antioxidant defenses.
Skin problems affect about one in four dogs. Pet parents usually spot the first signs when their dogs begin to scratch, bite or lick their coats.
Supporting skin health is not only essential for comfort but also because the skin acts as a vital defense against external and internal stressors.
A healthy skin barrier helps retain moisture, protects against allergens, bacteria, viruses and environmental toxins, and is key to keeping the skin resilient and balanced.
Functional insect meal can be a powerful ally, helping to strengthen this barrier, support antioxidant defenses and manage skin sensitivities.
Bugging off food allergies
About 10% of dog allergies are food-related, often causing itchy, irritated skin and secondary skin infections. Insect meal is a hypoallergenic protein source for most dogs and can help manage food sensitivities.
Research-backed results
The skin health benefits of functional insect protein were evaluated in research conducted by the Federal University of Paraíba in Brazil.
Researchers compared skin water loss and oxidative stress biomarkers in eight dogs before and after 50 days on two diets: one containing ProteinX from Protix and another with a traditional poultry byproduct meal, using a crossover design.
The results showed that including 29.5% ProteinX improved skin barrier function and strengthened the antioxidant system.
Improved skin hydration
When dogs were fed a ProteinX-based diet, they showed improved skin hydration and better water retention.
Reduced transepidermal water loss, a key indicator of how well the skin retains moisture, was measured at two body sites, the outer ear and the belly.
There was also a significant increase in hydration of the stratum corneum, the outermost layer of the skin that serves as the primary barrier between the body and the environment.
Building good defenses
Markers of oxidative stress were measured in the dogs’ blood before and after the feeding period. Results showed lower levels of malondialdehyde, a compound linked to oxidative damage, and higher levels of vitamin E in dogs fed the ProteinX-based diet.
These findings indicate stronger antioxidant defenses, which help protect the body from free radicals and support overall health and vitality.
ProteinX is a versatile ingredient that can be incorporated into wet food, dry food and treats. It offers opportunities to develop formulas that help strengthen the skin barrier, support antioxidant defenses and address food sensitivities.
