Pork liver has great palatability and is irresistible to dogs and cats. Pork liver is a good source of iron, copper, niacin, zinc, and phosphorus. It will provide your four-legged friend with vitamin b, omega-3, and omega-6 fatty acids. Our human grade pork liver is sourced in canada. We only use single ingredients in our dried treats. They are either 100% fish or 100% meat. We use no fillers, artificial flavorings or preservatives in the making of our treats. Our treats are dehydrated over a long period of time. Most for over 20 hours. Due to the long drying time almost all the moisture is removed allowing the treats to remain in perfect condition for a long period of time (up to 2 years).