The Blue Buffalo Basics Skin & Stomach Care is a limited ingredient diet that is perfect for supporting healthy muscle maintenance in your pet. This food is made with a single protein source of real whitefish and contains no chicken or beef by-products, no corn, wheat, soy, dairy, or eggs. The Blue Buffalo Basics Skin & Stomach Care is also limited in terms of artificial flavors and preservatives, which means you can rest assured that your pet is eating a clean and healthy diet.