I haven't tried a ketogenic diet against cancer, and I don't have $111 for Dr. Seyfried's book. Everything about Dr. Seyfreid's work points at a modified ketogenic diet for treating and avoiding cancer.
From the author, Dr. Thomas Seyfried....
http://www.nutritionandmetabolism.com/content/7/1/7
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.....it remains to be determined if members of our species are willing or motivated enough to adopt the life style changes necessary to prevent cancer.
.....Consequently, energy restricted diets combined with drugs targeting glucose and glutamine can provide a rational strategy for the longer-term management and prevention of most cancers.
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In this article the author acknowledges that glucose and glutamine are the primary obstacles to preventing and eliminating cancer. He also acknowledges that most people on the path to cancer will refuse diets which reduce concentration of these chemicals. As a solution, he recommends restricting calory intake and taking pharmaceuticals which reduce the markers for glucose and glutamine.
The problem? The markers for glucose and glutamine do not measure their transient metabolic effects. The drugs which reduce these markers do little to reduce the transient metabolic effects of glucose and glutamine.
Practically cancer patients will implement calorie restricted diets by cutting back on everything they eat. Since most of these people eat diets concentrated in sugars, glutamates, and the carb-related proteins which elevate glucose, they will continue to produce cancer. The rate will merely slow.
Dr. Seyfried nails the causes of cancer, insulin resistance and glutamates. Then Seyfried says that cancer patients will refuse diets which reduce these factors. He offers a solution based on the people's tolerances.
I agree that "ketogenic diets" help reduce cancer, but they do not go far enough. The definition of a "ketogenic diet" rests on this. Ingest less total sugar than the average carb-adapted person's body needs, then supply the balance with fats. The liver makes up the shortfall by using fats to create more sugar. A few things are wrong with this concept....
1. It produces the same amount of circulating glucose.
2. It ignores the cause of elevated glucose, insulin resistance from ingested carb-related proteins.
3. It ignores the contribution of ingested glutamates.
Modify the standard "ketogenic diet" to eliminate glutamates and insulin mimetic proteins. Then you have a workable anti-cancer diet.