As a rule, my dog eats what I eat. She has maintained her body weight, is still energetic, despite the abuse she endured before her rescue having caused lasting injuries that were only recently discovered. (The vet gave me a dirty look before I explained that she was a rescue.)
I eat a very low carbohydrate diet to maintain my A1C, so she doesn't get pumped full of grain either.
We eat a lot of meat, eggs, and some cheese with a few vegetables. So she's equally complicit in whatever Earth-wrecking damage that does, and probably cares about it twice as much as I do.