A gentle freeze-drying method preserves the natural flavor and nutritional value of the duck hearts. This snack is perfect for both kitties and pups, and it’s even great for furbabies with allergies, diabetes, or limited diets. Each treat is made from raw, diced duck heart with no added or removed ingredients. Feel good knowing you're rewarding your pal with a snack that is high in protein and low in calories for overall health and wellness. These treats are sourced and made entirely in the USA for quality and trust.