Thomas Seyfried (Boston University) has been doing this for several years now.

Warburg was right that glucose feeds cancer cells.

But he was missing an important piece of the puzzle, which is why mainstream Big Med could dismiss him.

Not ALL cancers need glucose.

Some of them can also feed on glutamine, an amino acid.

Seyfried has shown that (a) a diet with no glucose and also (b) using glutamine blocker drugs will kill cancer cells.

He has done this in animals, and his colleagues in other countries (where humans are legally allowed to volunteer) have done it with humans, too. This includes some of the most aggressive cancers, such as glioblastoma (brain cancer).

Fasting would be another way to do it, although the person would have to eat something at some point. But they might be able to eat infrequently enough and with zero carbs to starve out the cells without any drugs.

Otherwise, glutamine blockers would be helpful.