> That's interesting. I was just reading about how high dose IV vitamin c can induce cell death in a wide variety of cancers, but somehow, despite this being known for decades, nobody has done rigorous research on it.

Sigh. Vitamin C quackery again.

Vitamin C at high doses is cytotoxic, so it works against rapidly dividing cells. Cancer cells also preferentially concentrate vitamin C because they are under oxidative stress.

However, just like with most of other generally cytotoxic treatments, cancer cells quickly evolve resistance to it. And the overall toxicity of vitamin C makes it uninteresting as a treatment.