Basically, a dog is a dustbin, so feed it cheap bagged food, and most of your leftovers (not including bones that will splinter) and exercise it where it can run around and eat what it likes and it'll be fine.

I heard of ONE case of a lab eating a disposable nappy - expanded in its stomach and killed it) and have heard several cases of inflatable rubber balls being swallowed in lumps too large to crap out, and one of a puppy eating a clean roll of bandage - all of these require operations for removal from the stomach.

I did once know a labrador-cross that picked and ate gooseberries.

Chocolate is not good - but I once knew a pointer who could get an Xmas tree chocolate out of the foil wrapper leaving the wrapper still on the tree!

It's mostly a bit like people food. Less fuss is good.