Donkey oil is a nutritious and nourishing animal oil. Due to its warm nature, this oil has many properties and benefits, including treating and relieving joint, muscle, bone pain, and rheumatism. Donkey oil is a rich source of fat-soluble vitamins A, E, and D. This oil is beneficial for people who are allergic to casein and lactose. This substance contains butyrate, a type of essential fatty acid for the body. The presence of vitamin K2 strengthens bones.