http://articles.mercola.com/sites/articles/archive/2000/04/23/oranges-iinhiibit-cancer.aspxNaturally occurring substances in citrus juices, called flavanoids, show promise against prostate cancer, lung cancer and melanoma in laboratory studies, according to a joint Canadian-United States study. Twenty-two flavonoids were examined during theenCommunityServer 2008.5 SP1 (Build: 31106.3070)