Proponents claim the noni fruit and its juice can be used to treat cancer, diabetes, heart disease, cholesterol problems, high blood pressure, HIV, rheumatism, psoriasis, allergies, infection, and inflammation. Some believe that the fruit can relieve sinus infections, menstrual cramps, arthritis, ulcers, sprains, injuries, depression, senility, poor digestion, atherosclerosis, addiction, colds, flu, and headaches. It is further claimed that the juice can heal scratches on the cornea of the eye.