The bark can also be used to produce a red dye while the root yields a yellow dye for tapa cloth. The most important part of the plant is the fruit. The fruit when unripe can be eaten as a source of energy during times of famine or scarcity. When pounded with salt, the mixture can be used on deep wounds and broken bones as natural antiseptic. But more importantly is the juice from the fruit which contains certain pharmacological properties that can treat certain illnesses.
Some people use the juice on the hair to rid off head lice .
Traditional Polynesian healers have used Noni to treat a variety of health disorders such as high blood pressure, poor digestion, skin afflictions, menstrual cramp, sprains, conditions of aging, diabetes, arthritis and many more. Modern medicine has found out more miracles of this fruit, for example, in a report to the 83rd Annual Meeting of the American Association for Cancer Research in May 1992, the juice of the Noni fruit seemed to be able to suppress tumor growth indirectly by stimulating the immune system. In another paper published in 1949, the fruit was shown to have moderate antibacterial properties against 7 different kinds of harmful bacteria, such as M.pyrogenes, E. coli and Ps. It is also noted to show analgesic effect and effective against fungus and parasites. These have led to reported successes from people who have taken Noni to treat breast cancer and eye problems.