Your point may be broadly true but subject to important caveats. Cancer is a very heterogeneous disease. There is evidence that _some_ cancers can use, for exam

Your point may be broadly true but subject to important caveats. Cancer is a very heterogeneous disease. There is evidence that _some_ cancers can use, for example, acetoacetate. https://www.sciencedaily.com/releases/2017/01/170112141359.htm https://www.sciencedaily.com/releases/2017/01/170112141359.h...