Yes. The most common allergens for dogs are the proteins contained in meat, fish, dairy or cereal ingredients. There are no meats, fish, dairy products or cereals in HILARY’S BLEND or HILARY’S BLEND FOR CATS supplements. The only plant ingredient in HILARY’S BLEND supplements is chicory root extract. This ingredient is an extract which is more than 75% inulin, a pre-biotic fiber. This ingredient is almost 100% carbohydrate, and contains only trace amounts of protein. All of the other ingredients in the supplement are purified sources of essential vitamins and minerals. This supplement is 100% hypoallergenic and can be safely fed to pets suffering from allergies.