Yucca comes from perennial shrubs and trees in the family Asparagaceae. While this is more commonly known as fiber-rich food just like potatoes, some people actually make use of the yucca extract for relieving pain caused by arthritis. Yucca is a type of root vegetable that contains compounds known to reduce inflammation. While scientists have yet to prove yucca’s arthritis-fighting effects, there have been some preliminary research suggests that yucca extract shows promise in the treatment of arthritis. For example, a report indicates that certain antioxidants found in yucca may help suppress arthritis-related inflammation.