100% Natural Himalayan Yak comes from the ancient recipe of the people of Himalayas in Nepal. In the surrounding Mt. Everest at more than 15,000 feet, these dog treats are made using traditional methods with yak and/or cow milk, and all natural products with no preservatives, binding agents. These yak chew/cheese not just gluten free, they also provide some really desirable health benefits like protein, minerals and calcium. An excellent and unique dog treat for all breeds and sizes.