2005, 琉球大學(xué)醫(yī)學(xué)院University of the Ryukyus Faculty of Medicine指出地瓜, 薑黃, 西洋菜及金針花均有強(qiáng)力防治大腸腫瘤之效.   <Asian Pacific Journal of Cancer Prevention. 2005Jul-Sep;6(3):353-8>

同年, 東京農(nóng)業(yè)大學(xué)Tokyo University of Agriculture將釀酒所剩餘地瓜粕乾燥, 以5%比例混於實(shí)驗(yàn)動(dòng)物飲食中, 發(fā)現(xiàn)其患乳癌機(jī)率及腫瘤數(shù)目均有所下降, 可作為防乳癌食品.  <Bioscience, Biotechnology& Biochemistry. 2005Oct;69(10):1898-904>

2007, 國(guó)立九州/沖繩地方農(nóng)業(yè)研究所National Agricultural ResearchCenter for Kyushu Okinawa Region發(fā)現(xiàn)地瓜葉對(duì)血癌HL-60, 胃癌Kato III, 以及大腸癌DLD-1均有抑制效果, 尤以血癌為佳.  <Journal of AgricultureFood & Chemistry. 2007 Jan 10;55(1):185-90.>;  同年, 臺(tái)灣中國(guó)醫(yī)藥學(xué)院也證實(shí)地瓜對(duì)血癌NB4細(xì)胞之防治作用.   <Journal of Agriculture& Food Chemistry. 2007 Apr 4;55(7):2548-53.>