There are countless nutrients found in these treats, such as omega 3 fatty acids (for joint and skin health), calcium (for bone health/healthy joints), and protein (for muscle health), 100% Australian caught Gummy Shark and dried in Australia. Gummy shark is used in fish and ship shops in Australia and generally sold under the name flake. We use the left overs. Gummy shark is classed as fully sustainable and has a quota which is strictly monitored by the Australia Fisheries. We 100% do not use unsustainable, endangered shark species for any of our shark products. Product of Australia: Manufactured in Australia using 100% Australian Shark Single ingredient product with no preservatives, additives, colours, added sugar, or anything else! Lowest Fat Dog Treats (Under 5%) Long Lasting – Mini to Small Dogs Anti-Inflammatory And Joints