Cherry Olive is discussing:

For years, patients have been flocking to Mexican clinics for treatments that are shunned, prohibited or regarded as outright quackery in the United States.

look up gerson therapy.

this article will not cal it out by name.

the FDA made it illegal to treat cancer in ways other than chemo, surgery, pills so they could call the ways to treat the patient at low cost quackery.

So when a doc says they will look at it when they see a patient with positive results, they don't. They don't want to know because they can't pursue it because the FDA made it illegal.