Mangosteen (Xango) juice: Can it help arthritis?

Mangosteen is a tropical fruit native to Southeast Asia that has been used in folk medicine there for many years. Despite the name, this fruit is not related to the mango. The mangosteen is touted for its antioxidants, especially xanthones. Like many other plants, extracts of mangosteen have shown in lab tests that they can stop the growth of certain bacteria and fungi. However, there are no published clinical trials showing evidence that either the fruit or its juice — marketed under the name Xango juice — is an effective treatment for arthritis, cancer or any other disorder in humans.