DCA fights acidocis, so ketogenic diet + DCA makes sense. However, I've never read anyone using this approach. Googling around, I see that ketogenic diet inhibits tumor growth in mice. Adding DCA seems pretty good idea, but I don't know how well it works in real life.

Artemisinin/artesunate treatment could be also considered, but I don't know if it works with ketogenic diet.

This below is a fact.
A Ketogenic diet aids in making tumor tissue LESS acidic. It is the process of aerobic glycolysis that renders tumors acidic. Thus, reducing the amount of glucose available, shifting to ketone bodies, normalizes tumor pH. Recent animal studies has shown this.

Low pH in acidic tumors tends to downregulate the activity of immunecells that otherwise might target the tumor.

Thus, a ketogenic diet is likely to augment the efficacy of immunological cancer treatments.

As for keto and DCA, it seems likely that a ketogenic diet should make one less sensitive to some of the side effects. With a metabolism geared towards ketones as primary fuel, any DCA-induced lowering of available blood glucose should be less of a worry.

I will today check out a suitable dosage of DCA, and start taking it tomorrow. This will be part of my "neo-adjuvant" strategy, thus targeting the tumor prior to conventional therapy (ie, surgery).

All the best,

Andrew

Some patient results with the Ketogenic diet:

Blood glucose, lactate, and pyruvate concentrations decreased and there was a trend towards a reduced plasma alanine with the establishment of systemic ketosis.

Because lactate, pyruvate, and alanine can act as substrates for gluconeogenesis, it is possible that the changes in substrate concentrations associated with systemic ketosis might reduce the rate at which glucose is supplied to the tumor. Moreover, the trend towards elevated blood levels of fat-derived energy substrates (free fatty acids and ketone bodies) and reduction in blood glucose concentration emphasize the potential of systemic ketosis in maintaining the supply of energy to the host while reducing glucose
supply to the tumor.

From: Cancer cachexia: influence of systemic ketosis on substrate levels and nitrogen metabolism
http://www.ajcn.org/cgi/reprint/47/1/42.pdf

Important fats are coconut oil, butter, flaxseed oil, fish oil, cod liver oil and some olive oil.

There is an interesting paper here:

The calorically restricted ketogenic diet, an effective alternative
therapy for malignant brain cancer

http://www.biomedcentral.com/content/pdf/1743-7075-4-5.pdf

And another interesting one on the same topic here:

Carbohydrate restriction in patients with advanced cancer - a protocol to assess safety and feasibility with an accompanying hypothesis

http://www.communityoncology.net/journal/articles/0501022.pdf