That thing with the fermentation is called the Warburg Effect, and it's the reason why PET scans work. There are some cancer types where this is more prominent

That thing with the fermentation is called the Warburg Effect, and it's the reason why PET scans work. There are some cancer types where this is more prominent. But even then, it's hard to disrupt this without causing a lot of collateral damage, because normal cells also need to ferment. https://en.wikipedia.org/wiki/Warburg_effect_(oncology) https://en.wikipedia.org/wiki/Warburg_effect_(oncology)