Large Doses Of Vitamin C Supplements May Reduce The Effectiveness Of Cancer Drugs, Memorial Sloan-Kettering Cancer Center Researchers Have Warned  
10/1/2008 7:03:35 AM

Medical News Today -- Experiments on lab cultured cells and mice suggested that high amounts of vitamin C derivative at the cellular level, as results from taking supplements, may actually reduce the effect of anti-cancer drugs by helping the cancer cells live longer.