I am a natural health professional, and currently work with oncology clinics. Significant studies have shown that high doses of Vit C,E, beta carotene,selenium and a good muti vit and mineral along with 90 to 100 milligrams of CoQ10 and OPC3 has proven very effective in cancer patients. It is my recommendation that these supplements are taken in a isotonic form as to achive optimal absorbtion. As always you should check with you doctor first, but all studies have been conducted in scientic medical facilities.