At Phelps Pet Products, weve been making great tasting 'pharm-to-table' dog treats designed to support pet health and vitality since 1966. Gut Check Digestive & Gut Health Lamb Recipe Dog Treats are Pre and Pro-Biotic Fiber treats to support digestive and gut health. With apples, pumpkin, and chicory root. No wheat, corn, or soy. No artificial colors, flavors, or preservatives.