In my research before we get our pigs, a lot of people say they have outdoor bred, free range pigs that live off the land.
Is it possible for pigs to live outdoors with no supplementary feed, be healthy and fatten to meat weight, or does everyone feed their pigs something in addition to what they forage, apart surplus fruit and veg, etc? The rare breed pig feed seems to be a low protein blend of natural ingredients, so if this fed to the pigs would they still be considered naturally raised without supplements?
It seems like you would need a lot of land to raise only a few pigs if they have had to find all their own food?