Methods for producing a composition that includes an active agent, nutraceutical and pharmaceuticals compositions, and methods for ameliorating and/or treating a disease using the composition that includes an active substance are described herein. More particularly, methods for producing a composition that contains one or more active substances such as oleocanthal, pharmaceutical compositions that include one or more active substances such as oleocanthal, and methods of ameliorating and/or treating inflammation using compositions that contains one or more active substances such as oleocanthal are described.