Okay, but the parent was implying that would discredit the interviewee. One thing I've observed with people that have an important message to disseminate is they are not fussy about what the medium is
And then there's the further research you can do:
https://sciencebasedmedicine.org/ketogenic-diets-for-cancer-...
I dunno. I don't know enough to evaluate this in precise detail. But I do know enough to feel cynicism about extraordinary claims.