Teflon won't react with anything in your body. It's totally inert. It's one of the most inert things we know about. That's the whole point of the article.
It will depolymerize at temperatures above 650-700C.
Neither of those conditions is likely to be found in your body.
I’d be worried about putting this on a grill or frying it. It’s theoretically mostly safe in terms of temperature, almost.
Wikipedia already has a section addressing temperature overlap between food and Teflon decomposition:
https://en.m.wikipedia.org/wiki/Polytetrafluoroethylene#Safe...