Your opinion is wrong in my opinion. BARF is very much practised in the US as feeding whole raw unprocessed food. Like, chicken (with feathers, poop, stomach contents and everything that came with the bird), lamb (again everything that came with the lamb), fish (everything that…… you get the idea). And that really keeps the dogs healthy, no teeth problems, no cancer, nothing. I have a 11 year old Tervuren that outruns and outperforms 3-4 year old working Malinois.