Actually something I recently read suggests that metaformin starves the cancer cells by preventing the uptake of sugar. Even the experts don't know for sure - why its successful which is what the research is about -. One thing that we do know is that cancers cells are sugar hogs - because they are so highly metabolic. This is why they are doing the trials,



Cheryl : Irritation - 2004 BX: 6/2008 : Inflam. BX: 12/10, DX: 12/10 : SCC - LS tongue well dif. T2N1M0. 2/11 hemigloss + recon. : PND - 40 nodes - 39 clear. 3/11 - 5/11 IMRT 33 + cis x2, PEG 3/28/11 - 5/19/11 3 head, 2 chest scans - clear(fingers crossed) HPV-, No smoke, drink, or drugs, Vegan