Because of valunords comment, I did a review of the literature in Google Scholar, and found there are quite a few small trials of ketogenic diets and fasting on different cancers. It is an active area of research, but the results so far are not amazing looking, mortality rates are about the same. At best, it seems like it might slightly increase the effectiveness of specific existing treatments for a small handful of specific types of solid tumor cancers. It's nothing even close to the 90% cure valunord is claiming- that is a flat out lie.

Valunord, I am replying to myself because your reply is flagged as dead. I am an academic that researches metabolism, and personally very experienced with ketogenic dieting, and also know about the warburg effect and agree with the metabolic theory of cancer… and I am still certain you are wrong. Those studies do consider adherence and still find high mortality in patients with good adherence. I am concerned that your are a zealot, and spreading false medical information. Indeed all cancer involves a certain metabolic defect, and cancers consume sugar through glycolysis. However when you stop eating carbs your blood sugar levels actually increase- and your body will break down protein and lean tissue to keep them high, to preserve glucose for the brain and heart, which unfortunately continues to provide glucose for the cancer as well. Even fat contains a glycerol backbone which provides sugar for glycolytic cancer cells.