West Paw’s Single Ingredient Freeze-Dried Treats, available in Beef Heart and Beef Liver, contain just one simple, nutritious whole food ingredient: 100 percent natural freeze-dried raw beef heart or liver. The beef used in the treats is American Grassfed certified, ensuring the proteins were humanely raised and sustainably sourced in the Pacific Northwest. The single ingredients are freeze-dried to safely retain the nutrition of raw, whole food proteins. The treats contain nothing artificial and no preservatives. They are backed by the company’s Love It Guarantee.