I don’t disagree with anything you’re saying. But it sounds like the parent said there’s a miracle treatment that the medical community is ignoring for lack of a financial incentive (and they then go on to mention a financial incentive?)

That's a ridiculous reading of my comment. Vitamin C induces cell death in a variety of cancers. That's what I wrote and it's not controversial, it's documented in dozens of studies. I went on to link an article by medical doctors and cancer experts (on cancer.gov) who explain how this works and also explicitly state that it's not being researched due to lack of financial incentive.

I can't stop you from refusing to read sources - but you should know that you're totally wrong here. I can, and have in this thread, cited multiple high quality sources.

Not read the Vitamin C literature but there is an obvious contradiction in what you say.

ie how can you have sometime which is both obviously beneficial - backed up by dozens of studies and yet complain about lack of research - if it's so clear then why do we need more research?

I also suspect doctors don't require FDA etc approval if they wanted to prescribe vitamen C - so what's stopping them? Lack of research? But I thought you knew?

Having said all that it is beyond all doubt true that commercial organisations can't afford to spend money on researching drugs with no prospect of return - however I wouldn't characterise that as evil big pharma blocking something - it's simply just that's it's not their role.

That role belongs to organisations either funded directly by the public ( charities ) or indirectly ( taxes ) for the greater good.