Metabolic therapy for cancer

I have several posts here about my newly-diagnosed metastatic melanoma, but I wanted this to be a new thread.
I was looking for alternative therapies for cancer, and I was afraid that most of them would seem, well, a little kooky (sorry, but that's what I thought).
I found one, however, that seems to be both outside the mainstream standard-of-care, but yet very well represented in the scientific literature, including at least one Nobel Prize (Warburg), and that is the metabolic theory of cancer. It seems as though its primary promoter is Dr Thomas Seyfried of Boston College. He is a professor of biology, genetics, and biochemistry at Boston College.
He has many books, articles, and videos online, so it is easy to learn about this theory.
I cannot go into it in detail, but its premise is that cancer is a metabolic disease, and not a genetic one. Please take the time to look at the details before shooting me. 🙂

My only question here is whether anyone else has looked into this, and what do you make of it? Did you ever ask your oncologist about it?