Stewart Pro-Treat Beef liver for dogs is an all natural dog treat made with 100% freeze dried liver. With just one single ingredient, Pro-Treat is a gluten-free dog treat with all of the nutritional value of beef liver. Considered a high value reward, Stewart freeze dried liver has been one of the best dog training treats on the market for over 40 years. Pro-Treat liver treats are also perfect as a food topper for picky eaters, or anytime you just want to share your love. When it comes to treats, we know that peace of mind is important. Rest assured that our quality standards ensure that you’re feeding safe dog treats, as well as the best natural dog treats made in America. Gimborn’s Pro-treat maintains the aroma, full-flavor and nutritonal value of 100% raw beef liver. Conveniently diced into reward size treats, Pro-Treat is an excellent obedience too. Rich in protein and preservative free. Do not moisten treats. Small pieces may be sprinkled on food for extra flavor and nutrition.