Yes they are, if you stay away from modern medical protocols.  Those people are in the business of making money, they are NOT in the business of getting you "well and healthy" again.  Capito? Capish? Entender?

https://drsircus.com/general/is-diabetes-curable-yes-it-is/

And:

https://drsircus.com/general/is-there-a-cure-for-skin-cancer-iodine-and-chlorine-dioxide-to-the-rescue/

Some amazing things have been done without the aid of "modern doctors or modern chemical medicines".  Imagine that.