hi,
hang in there, first of all is your friend willing to change his eating habits and his lifestyle? if not than forget it. treating cancer means treating the whole body. if you tell me where your located i can find a clinic to help your friend, in the mean time read up on cancer at cancertutor.com, dont worry about what the medical system says, they are totally clueless on treating cancer, you are what you eat and you are what you dont eat, every disease is caused by a lack of vitamins and minerals. all the best