100% natural, pure and easy to digest without any added preservatives. On average 5 calories per treat and high in protein. Ideal for dogs with health issues or pets that are overweight, diabetic, have allergies, gastrointestinal disorders, or are on a restricted diet. Made using a delicate freeze drying process that preserves the nutritional integrity of RAW fresh whole food. Only water is removed, preserving all the characteristics and natural nutrition of fresh raw Human Grade beef liver. Made with only 1 ingredient; 100% Pure USA Sourced & Made Raw Human Grade Beef Liver.