Hello. I think the biggest benefit of those extreme diets like carnivore or keto are getting rid of industrial food that is killing us

But it is probably healthier to eat a diverse diet with meat, fish, nuts, but also fruits and vegetables, including some carbs like potatoes but not in excess

And some honey and yoghourt and wine and cheese (for wine if you can do it reasonably, me for instance it is hard!)

Only meat might suit some but probably not many

Good luck and GM and what you are doing is very inspiring!