Stewart Pro-Treat Freeze Dried Liver treats maintain the aroma, full flavor and nutritional value of USA raised raw chicken liver. These freeze dried chicken liver treats are fresh, conveniently freeze dried and diced into reward sized treats making Pro-Treat an excellent reward and training tool. Pro-Treat Freeze Dried Liver has been the preferred choice of professional trainers and handlers for over 30 years because of its convenience and palatability. These protein rich training treats contain only one ingredient, perfect for dogs with allergies or those who are on limited ingredient diets. Pro-Treat liver treats are completely produced in the USA with no additives or preservatives.