Barkworthies offers its Australian Gourmet line, consisting of four all-natural, long-lasting dog chews. Each reward is made with minimal ingredients sustainably sourced from local Australian farms and ranches. Some treats are drizzled with a liver icing for a palatable chew that’s moist and mess-free, according to the company. The all-natural, single-ingredient liver topping is free of wheat, grain or binders. The line includes cow ears with liver icing and lamb ears with liver icing; salmon skin twists; and beef trachea with kangaroo filling. The entire Australian Gourmet line is free of grains, glutens, GMOs, preservatives, hormones, additives, antibotics or anything artificial.