Tucker's Pureed Chicken Heart and Liver BlendMix it, Top it, Treat it! Organ Blends are 60% heart and 40% liver. Have fun with serious nutrition, creating the ultimate bowl with Tuckers Boost Cubes, adding key nutrients to your pets favorite meal or snack! Guaranteed Analysis Crude Protein (Min): 11% Crude Fat (Min): 3% Crude Fiber (Max): 1% Moisture (Max): 72% Calorie Content (ME, Calculated): 1000 kcal kg, 23 kcal cube Supplemental Feeding for Dogs & Cats Single source protein, human grade