Real Food Toppers Beef Liver. Real Food Toppers sources its liver from US human grade facilities that are inspected and approved by the USDA. Because it is an exceptionally nutrient-dense food full of vitamins riboflavin zinc protein niacin iron and phosphorus Mother Nature designed pets to thrive on liver. Now you can be confident that with Pure Beef Liver youre feeding the highest quality liver treat in the world. Size: 4 Oz. Pouch. Just One Ingredient. US Sourced. US Made. Antibiotic Free. Hormone Free. Actual People Food. Feed As a Treat. Feed as a Gourmet Topper on Food. Feed Dry or Re-Constituted. No Sugar. No Artificial Ingredients. No Added Salt. No Junk Calories. No Refrigeration. Cooked and then Freeze Dried. Foil Lined Bag for Extra Freshness. Whole Dog Journal - Editors Choice. 100% Pure Beef Liver. Guaranteed analysis: Crude Protein: 64% min. Crude Fat: 12% min. Crude Fiber: 0% max. Moisture: 6% max. Sodium: 0.05% max.