There has been breakthrough research about Noni in Modern times . Through extensive library research , scientists have catalogued and published more than 150 nutraceuticals found in Noni . Included in these 150 nutraceuticals are some of the most powerful antioxidants known as proanthocyanadins , anthocyanadins , vitamin C and many others . Antioxidants are molecules with extra electrons . Those extra electrons stabilize disease causing free radicals that randomly bombard the body's cells . Antioxidants have been shown to help the immune system , the circulatory system , the digestive system , the nervous system , the skin and metabolic system . Noni Fruit is full of antioxidants . Studies show noni fruit has more antioxidant action than Vitamin C or Grape Seed Procyanadins , the two well known antioxidant substances .